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While faraway from reloading proper going back few years, Ive taken time and energy to try to find out more about internal ballistics. This has included using software which says he will help you find suitable loads for virtually any cartridge. The prices change from free to about 150, so when with many things in your everyday living, I found you obtain what you purchase. My observations on these software are presented here. The software Ive tried includes the Powley Computer, QuickLOAD, Load From A Disk, CalcuLoader, LoadTech, and CABM and NABM. As a figure of merit, all software was in comparison with velocities reported in modern load books. Only load books which offered pressure measurements were considered.
In about 1960, Homer Powley helped introduce a slide rule which allowed the handloader to predict charges and velocities. Over the years, he improved his equations, and offered harder formulas. One set of such formulas was published by William Davis from the NRAs 1981 book on handloading, and the equations consequently have been changed to software for PC users. One free implementation can be obtained on this site ; it runs in standard browsers, requires no download, and incorporates a separate page of notes covering its limitations. John Knight in England also provides a free Win32 executable, called WinLoad, which I found works needlessly to say and theres fashionable handy calculator for bullet stability also. There are also versions for Excel and BASIC.
The published Powley equations are intended for the larger pressure rifle cartridges. It tries to predict conservative charges of IMR powder for strong, modern rifles. It does not try and predict charges for low pressure cartridges, nor for reduced loads. It efforts to select the powder which to get a nearly full case will build a pressure approximately 45, 000 CUP, that is about 8000 CUP below what most contemporary rifles are rated. This slightly reduced pressure provides some margin for error and really should also bring about excellent barrel life.
In predicting charges, the equations can make a powder too fast, possibly producing pressures excessive for comfort. The equations from the older slide rules were a lot more prone to do this. For a strong modern rifle with good gas handling, you most likely wont hurt using the Powley Computer, however you must learn its limitations by comparing its predictions for the pressure tested loads from loadbooks.
One can find our about the trends in internal ballstics having a Powley Computer. The effects on velocity of barrel length an accidents capacity are very well predicted. The outcomes of pressure on velocity will not be so well predicted. To do it, you need to use the Pressure Computer reverse, as it were. The Pressure Computer efforts to correlate chronographed velocity to peak pressure, but only with limited success. The pressure estimates are likely to be decent, but you will discover classes of cartridges which is why it misses badly.
For the cost free, its still an effective tool.
For home computers, it was one from the first commerical products within this field possibly the very first, and W. Square Enterprises continues to be going after about decade, an excellent record.
The software programs are derived from Powleys work, with proprietary extensions. Like Powley, it really is meant to predict charges for rifle cartridges nearly full of powder. It does not seek to predict the performance of reduced rifle loads or of handgun loads. Unlike the first Powley Computer, it'll predict performance with powders in addition to those from IMR, and it'll predict charges and velocity at most of the pressures. The software includes dimensions for 1100 cartridges and a huge selection of commercial bullets.
As in comparison with load book values, the predictions were generally conservative. I dont recall being given a lot that an order book showed could well be dangerous. A few hot loads, yes, even so the variation wasn't much in excess of can be found among different loadbooks.
I last used many in about 2001. That version 3.0.3A can be quite a bit frustrating make use of, with inputs clumsily spread over several somewhat confusing screens, and I appeared throwing my copy away. Many new releases are actually made after that, and I have undoubtedly the software packages are greatly improved. I can recommend it an inexpensive option to QuickLOAD for individuals who seek only a bid of charge and velocity.
By far, this is actually the best software currently available for the handloader. While it is also the most expensive, I think the purchase price not unreasonable, and I recommend it without reservation. It is coded in Germany and it is offered from the US by NECO. Also offered can be a separate design tool for cartridge cases, QuickDESIGN, which I have not tried.
QuickLOAD is really a simulator, not some uncomplicated equation designed for lab data. It efforts to combine a mathematical description from the burning characteristics of the powder with an above average representation in the heat losses to your barrel, etc., and on this way mathematically predict the gas pressure and also the velocity from the bullet at each fraction of your millimeter on the barrel.
The software has an printed manual which carries a fine introduction on the field of internal ballistics. Included are descriptions in the mathematical representations used in the physical processes which happen within a gun. To the very great credit of that authors, the manual details all the shortcomings on the program and ways in which these affect being able to estimate cartridge performance.
Unlike Powleys equations and Load From A Disk, QuickLOAD will predict charges for pistol powders, and it also doesnt do to bad this time a job. The results aren't, however, as well as with rifle cartridges.
QLs strong point is correlating rated pressure to velocity. Used as directed, it appears to be capable to always bring you within 50 fps of what on earth is possible in pressure barrel tests. For pistols, Ive seen over 100 fps errors, nonetheless its often superior to that.
QLs charge estimations appear to always be low, but that is inside the safe direction. I should note its charge predictions can be extremely no worse versus the other software Ive tested. Related to and this appears to be considered a fudge factor on pressure. The manual recommends pressures regularly be set to 1/8 below that from the cartridges rating. For instance, should the cartridge is rated at 64 ksi, it is best to run the calculations at 56 ksi. Done so, the fps predicted is often quite in close proximity to factory ratings. A likely explanation is the fact that cartridges make full pressure and velocity only in a very tight, factory test barrel. However, some load book data includes pressures and velocities on the pressure barrels, and QL predicts these pressures and velocities go together. An alternate reason behind the 1/8 factor is related to pressure variations in solid loads. Due to normal shot to shot variations, pressures swing surprisingly, along with the velocity follows these swings. Cartridge ratings allow some random overpressure, but I suspect the burden books are showing velocities at pressures low enough the swings remain from the limits. I really should write the article author of QuickLOAD about it, for she has always answered questions promptly.
QL is exclusive in giving the handloader an insight into internal ballistics. Being a simulator, it'll give you plots of pressure, velocity, etc. since the bullet moves on the barrel. You can see the results on pressure rise rates when changing powders. You can fiddle with powder characteristics to find out how this affects powder speed. The bullet engraving input is simplistic, however, you will see changes inside the pressure curves caused by it.
The program permits rather extreme inputs. I tried simulating a bomb calorimeter test by firing a decreased load density charge within 200 lb 30 caliber bullet. The bullet, certainly, doesnt move much, so you're able to see pressure rise rates to get a closed chamber, and powder burn rates can be measured in this particular way. By measuring the slope on the pressure cure, I could get numbers not as far from those reported for IMR powders by Davis inside NRA manual.
QL isn't a replacement pressure tested load book data. In the 06/2004 issue of Handloader, John Barsness reports finding QL predictions of pressure to get a given charge might be off 10 ksi, when fired within a piezo setup. I find QL does perform a superb job of estimating cartridge potential, also it does execute a very good job of selecting which class or speed of powders make use of to obtain that potential. However, it really is not accurate enough to tell apart between two similar powders from different makers, and obviously it cant know about each of the possible lot variations. It also is clueless about primer effects, which in extreme circumstances can double pressures.
QuickLOAD is included with QuickTARGET, a great external ballistics program to predict the trajectory on the bullet during flight. I find QuickTARGET flexible and easy to utilize. QL will even plot a rifles free recoil, which includes a quote of the force on scope mounts.
I highly recommend whole process almost. Please don't forget the limitations these software must observe; see below.
This was AEM Enterprises successor thus to their CalcuLoader, that was a relatively inexpensive program I purchased inside 2002. As a testament thus to their customer support, I received the newly released LoadTech unsolicited, and then for no charge, about 12 months later; my version 1.0 was dated 10/19/03.
CalcuLoader was clearly not much of a basic Powley derivative, and I are unsure how it worked internally. My old notes indicate the interest rate of change of velocity with charge was quite diverse from Powley suggested, and also the rate of change of pressure with charge was higher and variable, as it really is in lab data. It was simple to make use of but tended to crash. Its charge and velocity estimates werent it is a shame. In addition to being very inexpensive, it took little disk space. In its set of case capacities, the values was always greater than from other sources.
LoadTech superseded it and it is an entirely awesome. It was obviously a bit of your disk hog, seizing 110 MB. While they claimed it renders CalcuLoader obsolete, its velocity predictions were beyond optimistic, on occasion corresponding to proof load speeds when tasked with predicting loads for low and medium pressure cartridges.
In late 2003, Ed Reynolds of AEM posted comments around the internals of LoadTech over a shooters forum.
we have generated a powder model based for the information available in the powder manufacturers, bullet makers, etc. From that people have developed formulas which can be best fit for any specific powder within the entire selection of available If the charge or velocity reliability is 98%, then our formulas have fallen within 98% with the published values offered by ALL on the published data that people have available.
If true, they have made a statistical fit of published load book data into a simplified type of internal ballistics. Ive done some work along those lines myself and also have had generally accomplishment.
I don't realize what went wrong with that first turmoil LoadTech, but also in 2007 I received word from your recent purchaser of AEMs software that showed the down sides I noticed ended up fixed. In 2013, I finally thought we would update my copy, but sadly, found AEM bankrupt. I was capable to contact Mr. Reynolds, and that he kindly gave me a totally free upgrade for the last copy with their AccuLoad program, which LoadTech is simply one of many useful modules. In limited testing, I find it to provide conservative velocity estimates and reasonable charge predictions for medium pressure cartridges measured in CUP.
It has also been conservative for underhand cartridges measured in psi.
However, for any larger, high-pressure cartridge measured in CUP, it produced charge and fps predictions somewhat high, and not dangerously so, especially were one watching fps that has a chronograph.
On the main AccuLoad was a fantastic effort, and I hope Mr. Reynolds could make his work available again.
On Steve Fabers site, Fabrique Scientific, he offers shareware versions of two different internal ballistics simulators.
One he calls CABM, that's based on an analytic solution due to a fellow named Coppock, as seen in Corners standard reference text Theory from the Internal Ballistics of Guns. It is surely an older, DOS program, and yes it ran by incorporating hiccups on my own PC under WinXP. I recall its predictions were inside ball park.
He also wrote NABM, which appears to have already been the most sophisticated simulator offered for the handloader. My PC running XP had trouble rendering the beta release offered for Windows. In an earlier version of his website, he previously had some comments within the internals to NABM, but Ive lost portion of my notes with this and so must recall some details from memory. NABM is often a proper simulator, like QuickLOAD, however it is representation of internal ballistics is actually detailed. The powder burning is simulated as individual grains of powder, and a limited extent you may even design your individual grain shapes. There are fudge factors allowing one to tweak the model for several lots of powder along with the effects of deterrent coatings. QuickLOAD represents powder burning in large quantities, which does are the reason for the effect of deterrent coatings. NABM also computes a quote of bullet engraving forces. QLs bullet engraving is fairly crude compared. I suspect primer effects, if addressed whatsoever, were poorly modeled, of those are tricky to quantify.
While its mathematical representation from the internal ballistics parameters was certainly by far the most comprehensive, Im not aware Faber had tweaked NABM towards the point it outperformed QuickLOAD. Again, NABM isn't supported, for Faber now recommends one utilize a strain gauge. Too bad, since mathematical models gives insights actuality can mask.
Sorry, I have not tried whole process almost, however, you can read over it at the RCBS site.
The internal ballistics of small arms are extremely hard to predict. Small modifications in bullet construction will alter how readily the bullet enters the bore. The more difficult it can be to engrave the bullet, the larger the pressure grows. The greater pressure gets for being, the faster the powder sets out to burn. Pressures can and do rise unexpectedly fast. Another big factor would be the primer, for doing this determines the primary rate of pressure rise, therefore how fast the burning accelerates. Powder lots sometimes vary greatly in burning speed likewise.
Because the variability of bullet engraving, primer ignition, and powder lots take time and effort to quantify, all commercial internal ballistics software simply ignores these effects. QuickLOAD efforts to deal by incorporating of them, however it simply cannot accomplish that with accuracy. Such software will let you select a powder, however it cannot inform you how much of it make use of nor which primer make use of. It also cant let you know what fps you may reliably be prepared to get at a certain pressure. For safetys sake, always end load development at the chronographed fps below what the program predicts. Take a minimum of 5% off your expecated fps; your target isnt more likely to notice the difference.
The only time you'll be able to reasonably anticipate to reach a particular velocity is that if youre using the many same components listed in an order that was tested in the pressure barrel. That means not simply the same powder, but also exactly the same primer, a similar case, as well as the same make and type of bullet. Even then, there is absolutely no guarentee the information getting exactly the same pressure found under test.
While clear of reloading proper for the past few years, Ive taken the perfect time to try to find out more about internal ballistics. This has included messing around with software which states help you find suitable loads for virtually every cartridge. The prices changes from free to about 150, so that as with many things in your life, I found you will get what you spend on. My observations on these software are presented here. The software Ive tried includes the Powley Computer, QuickLOAD, Load From A Disk, CalcuLoader, LoadTech, and CABM and NABM. As a figure of merit, all software was as compared to velocities reported in modern load books. Only load books which offered pressure measurements were considered.
In about 1960, Homer Powley helped introduce a slide rule which allowed the handloader to predict charges and velocities. Over the years, he improved his equations, and offered more difficult formulas. One set of such formulas was published by William Davis inside the NRAs 1981 book on handloading, these equations in return have been changed to software for PC users. One free implementation can be found on this site ; it runs in standard browsers, requires no download, and features a separate page of notes covering its limitations. John Knight in England even offers a free Win32 executable, called WinLoad, which I found works needless to say and theres fashionable handy calculator for bullet stability at the same time. There are also versions for Excel and BASIC.
The published Powley equations are intended for the greater pressure rifle cartridges. It efforts to predict conservative charges of IMR powder for strong, modern rifles. It does not seek to predict charges for low pressure cartridges, nor for reduced loads. It efforts to select the powder which for just a nearly full case will build a pressure around 45, 000 CUP, that is about 8000 CUP below what most advanced rifles are rated. This slightly reduced pressure provides some margin for error and really should also cause excellent barrel life.
In predicting charges, the equations can decide a powder too fast, possibly leading to pressures too much for comfort. The equations inside the older slide rules were more prone to do it. For a strong modern rifle with good gas handling, maybe you wont get injured using the Powley Computer, however you must learn its limitations by comparing its predictions for the pressure tested loads from loadbooks.
One can read about the trends in internal ballstics by using a Powley Computer. The effects on velocity of barrel length an incident capacity are very well predicted. The connection between pressure on velocity usually are not so well predicted. To achieve this, you should use the Pressure Computer backwards, as we say. The Pressure Computer tries to correlate chronographed velocity to peak pressure, but only with limited success. The pressure estimates usually are decent, but you can find classes of cartridges for the purpose it misses badly.
For the cost free, its still a good tool.
For home computers, it was one with the first commerical products with this field maybe the very first, and W. Square Enterprises remains to be going after about a decade, a superb record.
The software programs are derived from Powleys work, with proprietary extensions. Like Powley, it can be meant to predict charges for rifle cartridges nearly stuffed with powder. It does not make an effort to predict the performance of reduced rifle loads or of handgun loads. Unlike the main Powley Computer, it's going to predict performance with powders apart from those from IMR, and it'll predict charges and velocity essentially pressures. The software includes dimensions for 1100 cartridges and countless commercial bullets.
As in comparison to load book values, the predictions were generally conservative. I dont recall being given lots that lots book showed could be dangerous. A few hot loads, yes, though the variation hasn't been much higher than can be found among different loadbooks.
I last used quite sure in about 2001. That version 3.0.3A is actually a bit frustrating to utilize, with inputs clumsily spread over several somewhat confusing screens, and I appeared throwing my copy away. Many new releases are actually made ever since then, and I have little question the software program is greatly improved. I can recommend becoming an inexpensive substitute for QuickLOAD for individuals who seek only an idea of charge and velocity.
By far, this can be the best software currently available towards the handloader. While it is the most expensive, I think the purchase price not unreasonable, and I recommend it without reservation. It is printed in Germany and is particularly offered from the US by NECO. Also offered is often a separate design tool for cartridge cases, QuickDESIGN, which I have not tried.
QuickLOAD is really a simulator, not some uncomplicated equation designed to lab data. It efforts to combine a mathematical description with the burning characteristics of every powder with a capable representation on the heat losses to your barrel, etc., and with this way mathematically predict the gas pressure and also the velocity on the bullet at each and every fraction of the millimeter about the barrel.
The software features a printed manual which incorporates a fine introduction on the field of internal ballistics. Included are descriptions from the mathematical representations used in the physical processes which happen in the gun. To the very great credit of their authors, the manual details all the shortcomings in the program and just how these affect its capability to estimate cartridge performance.
Unlike Powleys equations and Load From A Disk, QuickLOAD will predict charges for pistol powders, plus it doesnt do bad a job. The results are certainly not, however, just like with rifle cartridges.
QLs strong point is correlating rated pressure to velocity. Used as directed, this indicates to be in a position to always ensure you get within 50 fps of what exactly is possible in pressure barrel tests. For pistols, Ive seen over 100 fps errors, however its often greater than that.
QLs charge estimations manage to always be low, but that is inside safe direction. I should note its charge predictions can be extremely no worse compared to the other software Ive tested. Related to itrrrs this that appears to be described as a fudge factor on pressure. The manual recommends pressures be set to 1/8 below that on the cartridges rating. For instance, in the event the cartridge is rated at 64 ksi, you need to run the calculations at 56 ksi. Done so, the fps predicted is usually quite all-around factory ratings. A likely explanation is always that cartridges make full pressure and velocity only inside a tight, factory test barrel. However, some load book data includes pressures and velocities through the pressure barrels, and QL predicts these pressures and velocities go together. An alternate reason behind the 1/8 factor concerns pressure variations in solid loads. Due to normal shot to shot variations, pressures swing surprisingly, along with the velocity follows these swings. Cartridge ratings allow some random overpressure, but I suspect force books are showing velocities at pressures low enough the swings remain in the limits. I really should write mcdougal of QuickLOAD with this, for she has always answered questions promptly.
QL is different in giving the handloader an insight into internal ballistics. Being a simulator, it can give you plots of pressure, velocity, etc. since the bullet moves around the barrel. You can see the results on pressure rise rates when changing powders. You can fiddle with powder characteristics to discover how this affects powder speed. The bullet engraving input is simplistic, however you will see changes inside the pressure curves caused by it.
The program makes for rather extreme inputs. I tried simulating a bomb calorimeter test by firing a minimal load density charge beneath a 200 lb 30 caliber bullet. The bullet, obviously, doesnt move much, in order to see the stress rise rates for just a closed chamber, and powder burn rates are now and again measured in this particular way. By measuring the slope from the pressure cure, I could get numbers not as far from those reported for IMR powders by Davis inside NRA manual.
QL will not be a replacement pressure tested load book data. In the 06/2004 issue of Handloader, John Barsness reports finding QL predictions of pressure to get a given charge may be off 10 ksi, when fired in a very piezo create. I find QL does perform superb job of estimating cartridge potential, and yes it does execute a very good job of selecting which class or speed of powders to make use of to obtain that potential. However, it's not accurate enough to tell apart between two similar powders from different makers, and certainly it cant know about each of the possible lot variations. It also is clueless about primer effects, which in extreme circumstances can double pressures.
QuickLOAD is included with QuickTARGET, an excellent external ballistics program to predict the trajectory on the bullet during flight. I find QuickTARGET flexible and easy to work with. QL will even plot a rifles free recoil, which includes an idea of the force on scope mounts.
I highly recommend quite sure. Please remember the limitations these software must observe; see below.
This was AEM Enterprises successor on their CalcuLoader, which had been a relatively inexpensive program I purchased in approximately 2002. As a testament on their customer support, I received the newly released LoadTech unsolicited, as well as no charge, about 12 months later; my version 1.0 was dated 10/19/03.
CalcuLoader was clearly not much of a basic Powley derivative, and I have no idea how it worked internally. My old notes indicate the incidence of change of velocity with charge was quite better than Powley suggested, plus the rate of change of pressure with charge was higher and variable, as it's in lab data. It was simple make use of but tended to crash. Its charge and velocity estimates werent it is a shame. In addition to being very inexpensive, it took little disk space. In its set of case capacities, the values have also been always above from other sources.
LoadTech superseded it which is an entirely new service. It became a bit of the disk hog, overtaking 110 MB. While they claimed it renders CalcuLoader obsolete, its velocity predictions were beyond optimistic, sometimes corresponding to proof load speeds when tasked with predicting loads for low and medium pressure cartridges.
In late 2003, Ed Reynolds of AEM posted comments within the internals of LoadTech with a shooters forum.
we have generated a powder model based for the information available through the powder manufacturers, bullet makers, etc. From that people have developed formulas which might be best fit for any specific powder above the entire array of available If the charge or velocity reliability is 98%, then our formulas came within 98% in the published values furnished by ALL in the published data that any of us have available.
If true, they have made a statistical fit of published load book data into a simplified type of internal ballistics. Ive done some work along those lines myself and also have had generally results.
I don't realize what went wrong with that first discharge of LoadTech, playing with 2007 I received word at a recent purchaser of AEMs software that showed the issues I noticed was fixed. In 2013, I finally made a decision to update my copy, but sadly, found AEM belly up. I was in a position to contact Mr. Reynolds, and the man kindly gave me a totally free upgrade on the last copy with their AccuLoad program, ones LoadTech is of many useful modules. In limited testing, I find it to make conservative velocity estimates and reasonable charge predictions for medium pressure cartridges measured in CUP.
It seemed to be conservative for ruthless cartridges measured in psi.
However, for just a larger, high-pressure cartridge measured in CUP, it produced charge and fps predictions a lttle bit high, yet not dangerously so, especially were one watching fps having a chronograph.
On the full AccuLoad was a fantastic effort, and I hope Mr. Reynolds is likely to make his work available again.
On Steve Fabers site, Fabrique Scientific, he offers shareware versions of two different internal ballistics simulators.
One he calls CABM, that's based on an analytic solution assigned to a fellow named Coppock, as within Corners standard reference text Theory in the Internal Ballistics of Guns. It can be an older, DOS program, plus it ran with many hiccups in my PC under WinXP. I recall its predictions were within the ball park.
He also wrote NABM, which appears to happen to be the most sophisticated simulator offered to your handloader. My PC running XP had trouble rendering the beta release offered for Windows. In an earlier version of his web page, he previously some comments within the internals to NABM, but Ive lost portion of my notes within this and so must recall some details from memory. NABM is usually a proper simulator, like QuickLOAD, nonetheless its representation of internal ballistics is much more detailed. The powder burning is simulated as individual grains of powder, and a limited extent it's also possible to design your personal grain shapes. There are fudge factors permitting one to tweak the model for several lots of powder and also the effects of deterrent coatings. QuickLOAD represents powder burning in mass, which does take into account the effect of deterrent coatings. NABM also computes a quote of bullet engraving forces. QLs bullet engraving is fairly crude in contrast. I suspect primer effects, if addressed by any means, were poorly modeled, because of these are hard to quantify.
While its mathematical representation on the internal ballistics parameters was certainly probably the most comprehensive, Im not aware Faber had tweaked NABM on the point it outperformed QuickLOAD. Again, NABM has stopped being supported, for Faber now recommends one utilize a strain gauge. Too bad, since mathematical models may give insights reality can mask.
Sorry, I have not tried whole process almost, however you can read regarding it at the RCBS site.
The internal ballistics of small arms are almost impossible to predict. Small adjustments to bullet construction changes how readily the bullet enters the bore. The more difficult it can be to engrave the bullet, the more expensive the pressure grows. The greater pressure gets for being, the faster the powder starts to burn. Pressures can and do rise unexpectedly fast. Another big factor could be the primer, because of it determines the primary rate of pressure rise, thereby how fast the burning accelerates. Powder lots sometimes vary greatly in burning speed also.
Because the variability of bullet engraving, primer ignition, and powder lots are hard to quantify, all commercial internal ballistics software simply ignores these effects. QuickLOAD attempts to deal by incorporating of them, nonetheless it simply cannot achieve this with accuracy. Such software can assist you select a powder, however it cannot let you know how much of it to utilize nor which primer to work with. It also cant show you what fps you'll be able to reliably be ready to get at confirmed pressure. For safetys sake, always end load development with a chronographed fps below what the program predicts. Take at the least 5% off your expecated fps; your target isnt prone to notice the difference.
The only time you may reasonably expect you'll reach a clear velocity is that if youre using the many same components listed in a large quanity that was tested in the pressure barrel. That means not merely the same powder, but also exactly the same primer, a similar case, plus the same make and type of bullet. Even then, there isn't a guarentee you will be getting the identical pressure found under test.
BallCalc is try and make a fantastic, easy to make use of, full featured and FREE!!! ballistics calculator for that Windows Mobile based within the GNU External Ballistics engine, and ultimately
Point Mass Balistics Solver principal purpose is as a simple and straightforward-to-use software program that allows you to execute various ballistics calculations. Point Mass Balistics Solver was made in Java which enable it to run on multiple platforms. Now you may
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pyBallistics is usually a graphical small arms ballistics program utilized to calculate ballistic coefficients, and model bullet trajectories. Future improvements might be a reloading database, and web links to industry reloading data.
BallCalc is seek to make an excellent, easy to make use of, full featured and FREE!!! ballistics calculator for that Windows Mobile based within the GNU External Ballistics engine, and in the end
Point Mass Balistics Solver principal purpose is as a simple and-to-use software program that allows you to carry out various ballistics calculations. Point Mass Balistics Solver appeared in Java and will run on multiple platforms. Now it is possible to
GNU Exterior Ballistics Computer v.32
A graphical interface for solving exterior ballistics problems, based around the excellent GNU exterior ballistics library. This software generates valid 3-DOF approaches to small arms trajectories, including wind and
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XIRR Calculator is usually a simple but powerful application that could calculate the annual internal rate of return XIRR Calculator can be a simple but powerful application that can calculate the annual internal rate of return for just about any number of cash flows.
Space Ballistics is arcade game like Amigas Gravity Wars. You need set angle and torpedo chance to hit enemy, but gravitation from some planet make trajectory hard.
Zero Ballistics is usually a unique combination first person shooter and tank combat Zero Ballistics is usually a unique mixture of first person shooter and tank combat, emphasizing multiplayer gaming exclusively.
WinXP, Win2000, Win Vista, Windows 7, Windows 7 x64
Ballistics could be the fastest racing game year is 2090, and humankind has changed into a high tech society. Diseases have left, and most people lives an appropriate and secure life.
An optimized C library for numerically solving exterior ballistics problems. It supports standard drag models Drag Functions G1-G8. The solution method may be the common 3 a higher level freedom analysis within many
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pyBallistics is really a graphical small arms ballistics program utilized to calculate ballistic coefficients, and model bullet trajectories. Future improvements has to be reloading database, and web links to industry reloading data.
Accuracy could be the theme of the section on the Hornady Handbook; what accuracy is, where it comes down from, and just how the shooter can improve it. Well demonstrate inside the following pages the reason is possible for your shooter to stop paying accuracy problems if he understands their origins and takes the proper steps to take care of them.
Factory ammo is, and must be, manufactured to specifications that could insure its functioning satisfactorily despite a wide variety of chamber tolerances in a very variety of bolt, slide, lever, autoloading, and single shot rifles, and revolvers and pistols both domestic and foreign. Factory ammunition must necessarily forego some accuracy potential to the individual rifle, to execute satisfactorily in the many different rifles in which it can be employed. Photo:
Handloads, however, might be made up for your individual firearm and its particular chamber without compromise so can bring out its best capabilities.
Handloading your ammunition - ammunition of great quality, customized to your own personal rifle or handgun, and your shooting needs - couldn't be easier or safer. It requires only four different components empty cases, primers, powder, and bullets and this also basic equipment: a powder measure, scale, a reloading press, some dies, some case lube, and also a loading manual. Elsewhere on this book we present detailed step-by-step procedures for reloading rifle and pistol cartridges - plus most in the data necessary for both the beginner and also the experienced reloader, regardless in the caliber of gun or style of target in which theyre loading. Our purpose here would be to help clarify certain issues with shooting and reloading that are frequently unknown or misunderstood. The more secure your understanding of these complex factors, the higher will be your odds of obtaining the ultimate in accuracy and satisfaction from your firearm and ammo.
To explain what actually happens inside the chamber of the rifle or handgun when it's fired, that this case and bullet suffer, we shall employ illustrations with exaggerated clearances which might otherwise be difficult to view.
The rimless cartridge shown here above, left is really a new factory round which fits the chamber rather loosely; its bullet just isn't in perfect alignment together with the bore; and also the case doesnt contact the front from the chamber above, second from left. As the firing pin strikes, it moves the situation forward to call the front in the chamber above, third from left, giving somewhat headspace above, right - but not only a dangerous amount.
Notice which the violence of the company's flash backs the primer part way out from the pocket left - so that as the powder is ignited and pressure accumulates, the brass case expands to fill the chamber completely middle, preventing any escape of gas on the rear.
As for most continues to build, the truth is forced so tightly from the chamber wall who's cannot move; but because we had a gap involving the base with the cartridge case as well as the face of bolt or breech block - might know about termed a bit headspace - the way it is itself must stretch inside the head region circled above, straight away to force the situation head back.
As the situation is moved rearward the primer is reseated in their pocket, once the bullet exits within the barrel pressure to succeed drops, the situation cools, and also the brass contracts enough permitting extraction in the fired cartridge case from your chamber left.
The notion of headspace is a every shooter should understand fully, both inside the interest of more accurate shooting and private safety. In the Illustrated Glossary with the back on the 8th Edition from the Hornady Handbook we summarize four different headspacing systems and define the word very simply as being the fit of your cartridge within a chamber measured because the distance through the breech face compared to that part in the chamber which stops the events forward movement. As we have just seen with this particular rimless case, an imperfect fit in the cartridge inside chamber will cause case stretching inside the critical head region. Fired in the chamber having considerable headspace, this 308 Winchester case right - closeup has experienced its wall thickness substantially reduced with the critical head region - and would most likely have separated about the next firing - as did this situation far right. Such a rupture might permit gas to flee rearward from the action, endangering the safety on the shooter.
Next well illustrate another sort of case using a different head-spacing system; the rimmed case. When the primer in this particular case is struck with the firing pin left, top, the situation itself cannot advance appreciably because it truly is the rim but not the shoulder which stops its forward movement thereby positions it from the chamber. As the powder is ignited and pressure builds inside the situation, its thin walls readily expand to call the chamber; but as the rimmed head is virtually in contact while using bolt face or breech block the truth left, middle won't stretch as much from the critical head region as did the rimless case we first illustrated - unless the action used can be an exceptionally weak one.
The belted case - often utilized in so-called Magnum cartridges - is really a third kind of design frequently encountered. The belt is at effect a rim moved to your front on the head instead of being in the rear. When this sort of cartridge is struck because of the firing pin it's moved forward only slightly, regardless from the space in the shoulder. When its continues to be fired left, bottom there may be very little stretch within the critical head region; however, if headspace is just not close the truth will stretch just across the belt.
A cartridge case plays a demanding role from the process of firing. It must contain hot gases under immense pressures and seal the chamber to avoid their rearward escape. Despite security features incorporated in modern rifle actions, case failure due to faulty headspacing poses possible dangers towards the shooter. As well show, the careful reader who understands the idea of headspace usually takes steps to attenuate the risks of case separation.
To review our discussion nearly this point, weve established that factory ammunition, manufactured to function inside a wide variety of actions and chambers of varying dimensions, is going to be an imperfect fit inside the individual rifle and handgun. The bullet is not going to necessarily have perfect alignment together with the bore; plus the case will expand on firing to conform for the dimensions on the chamber if the cartridge is fired. If headspace is just not close there are going to be some stretching or thinning in the case wall within the process.
But while our case conforms perfectly towards the chamber in which it continues to be fired, one important dimension has become changed so who's cannot be reused as is also: the situation neck has expanded to push out a the bullet and is also now too large to hold on to a new bullet securely. This brings us face to face that has a decision that plagues and confuses many reloaders: whether should full-length resize their cases, returning those to standard dimensions - or whether should resize the necks only.
Lets examine the entire process of neck sizing to find out what advantages it affords. Most cases is usually neck sized in the normal complete die by simply unscrewing it slightly, though an effective neck sizing die is preferred. Since the body on the case is not going to be worked inside die, it truly is not important to lubricate the total case. It is necessary simply to dip the neck lightly in the dry lubricant, for example powdered graphite, to prepare for your resizing operation. A new primer, a new powder, plus a new bullet get the situation ready for reuse.
Though some rifles deliver the most beautiful groups when complete resized, neck sizing alone usually promotes better accuracy, because when our reloaded cartridge is returned on the chamber it really is almost a great fit; headspace is simply right effortlessly cases, whether rimmed, belted, or rimless; and the majority helpfully of the, the brand new bullet is practically perfectly aligned while using bore.
Observe what the results are when this reloaded cartridge is fired: the striker will not drive the way it is forward considering that the shoulder has already been in virtual contact using the chamber left, top; and headspace is minimum.
The case just isn't subject to stretching inside the critical head region right, top since it was when fired originally.
Some reloaders may wonder why it would not be possible to regulate a full-length size die to remove excess headspace and find the advantages weve just noted for that process on neck sizing only. To have the answer to this question well go back to our cutaway illustrations. The full-length sizing die, though adjusted for minimum headspace, works the brass, eventually which makes it flow in the neck area thereby lengthening the situation right, bottom.
When the reloaded cartridge is returned for the chamber, it does not have excess headspace - nonetheless its almost as loose a fit the way it was when new left, middle. One benefit complete resizing provides if through with minimum headspace is within aligning the bullet using the bore left, bottom, though some misalignment can always be possible because of case or chamber eccentricities.
Repeated complete resizing could keep lengthening the situation until it requires to eventually be trimmed, possibly for only three or four rounds. The reasons with this are simple. The case body expands on firing; as well as diameter is reduced in full resizing. The brass displaced must go somewhere - also it does; it really is pushed upward to lengthen the way it is.
When an overlength case is chambered, the mouth or edge on the neck may come up up against the throat left, top prior to the bolt has fully closed or true shoulder has contacted the chamber left, upper middle. The camming action with the bolt is very powerful that it'll actually crimp true mouth fully in the bullet left, lower middle and wedge true so solidly involving the bullet as well as the throat the neck cannot expand to discharge the bullet. Chamber pressures within this situation can and the majority certainly will go dangerously high left, bottom.
There are going to be ample evidence to verify the existence of dangerous pressure levels directly attributable for the overlength cases. The shooter could get belted sorely within the cheek; the bolt may need to be hammered open; an incident head may present clear warning signs of too much pressure right, top. The primer are going to be excessively flattened; there would have been a crater round the firing pin indentation; and brass may happen to be extruded into your ejector slot.
If the situation head is miked right, bottom it could show expansion - and in many cases half of one thousandth of an inch.0005 increase inside the diameter on the case head is undoubtedly an indication of questionable.
Case lengthening that is generated by repeated full resizing will shorten case life. Continuous working with the brass between chamber and die stretches it, eventually producing cracks within the case and lastly complete head separation. Hot loads, regardless of whether necks are trimmed as necessary, improve this process.
If optimum accuracy and prolonged case life are important to your reloader, our advice should be to neck size alone whenever practical. There are naturally, situations in which it really is advisable to complete resize. Shooters reloading for pumps, lever-actions, and autoloaders must accomplish that to facilitate reliable chambering. A lever-action, for instance, does not have the powerful camming action of the bolt action and will not easily chamber cases greater than factory standards. Shooters who reload cases from a single bolt action for the next will also realize its necessary to full resize. Even shooters reloading for just one bolt action will occasionally need to full-length resize for that sake of easy clearance; over repeated firings the way it is may conform a growing number of tightly to chamber dimensions, making chambering and extraction increasingly difficult.
While the problem of cartridge case to chamber fit is of vital importance to your subject of accuracy, bullet seating includes a considerable impact on accuracy in most rifles - additionally, on pressure and velocity too.
The section ahead of the rifles chamber just prior to a rifling starts above is known as the leade, throat, or freebore and it is really the bore in the barrel with all the rifling reamed away. As our bottom three illustrations show, it varies considerably in total and inside the angle when the rifling is cut, depending for the views of several factories, cartridge designers, and barrel and gun makers. Normally it's quite short and also the rifling starts perhaps just one 32nd of an inch from your bullet; in some rifles the freebore might allow over less than an inch of bullet travel before it contacts the rifling firmly.
To illustrate the consequences of variations in bullet travel prior to the bullet enters the rifling, well compare a typical load with adjustments made only within the bullets seating depth.
In an ordinary load with all the bullet seated to allow for about one 32nd of an inch gap A between your bullet plus the initial contact with all the rifling, pressure builds very smoothly and steadily even because bullet takes the rifling. Pressure remains safe through the powder burning period B, plus the velocity obtained - 3500 fps - is normal because of this load with this rifle.
Seating the bullet deeper to permit more travel before it will take the rifling, as with these next two illustrations, permits the bullet to get a great running start C. Powder gases quickly convey more room where you can expand without resistance, and pressure thus never reaches the conventional level. Nor does the speed; with the identical powder charge it only pertains to 3400 fps D.
When the bullet is seated to touch the rifling, as inside the accompanying illustrations, it isn't going to move when pressure is low E; instead of having an excellent run for the rifling as did one other bullets, it will take greatly increased pressure to just make it into your rifling. As the rapidly expanding gases now find less room compared to they should have at the moment in their burning, for most rise under these conditions is both rapid and excessive F. Velocity is high at 3650 fps - but on the expense of rather dangerous pressure. Many rifles deliver their very best groups when bullets are seated just touching the rifling. Seating bullets thus could be done quite safely should the reloader will reduce his charge by some grains. The lighter load will still produce the standard velocity without excessive pressure.
This introduces another pointer on accuracy for shooters and also require a few thousand rounds through their rifle barrel and also have noted a fall off within the accuracy they will obtain using standard loads. Hot gases on the shots previously fired with the barrel erode the throat and so increase the gap a bullet must travel before contacting the rifling. By loading longer bullets and seating them farther out so theyll touch the rifling - making powder charge adjustments as necessary, naturally - accuracy is frequently improved.
The variety of factors affecting the performance of an cartridge is remarkable; weve looked in the cartridge to chamber fit; alignment on the bullet while using bore; the depth that a bullet is seated as well as the amount of travel it undertakes before contacting the rifling. The primer, an element many reloaders overlook, may influence performance whether not up for the task of igniting densely packed smokeless powder. Some powders burn more uniformly as opposed to runners and help with better accuracy.
All content and logos 2010-2013, JBM Ballistics, LLC
Pointers to ballistics software available about the web and elsewhere. I have not used most of the programs, so I am not trying to review or perhaps recommend any of them. This page is intended to be a central area for people to find what's available. If you have or know any other software that is just not listed here, please tell me. Dead links are removed from time for it to time - - usually if Google cannot see them anymore.
Programs are listed alphabetically by name by 50 % sections. The first section, Programs lists those commercial and free programs that I currently learn about. The second section, Web Based, lists over the internet calculation programs.
Windows based ballistics program for small arms and airguns. Nice Windows installer. Free.
Windows ballistics program developed in Visual Basic. Has a great deal of features like many on the programs here. Price is 49.95 with a CD.
Ballistic can be a fast, highly-accurate ballistic trajectory calculator and range companion for your iPhone. Currently 3.99 US.
A modified Pejsa model implemented in the spreadsheet. Free.
External ballistics programs for DOS and Windows with demo. 60-70.
A shareware ballistics program by Helge Peters for Apple/Mac. The program containes 8 different functions for sport shooters, hunters and reloaders. The costs are 20.00 US.
Barnes Windows based ballistics program, version 2. Runs on Windows 95 or better. Price is 49.95 19.95 upgrade is accessible.
They get some ballistics programs about, including a 22 caliber program, barrel twist and powder equivalence chart. Free.
Exterior ballistics program from Shooting Chrony Inc. 19.95 to 54.95. Used to get PC/Bullet.
A DOS based program from R. Nennstiel. This program relies on a modified point mass trajectory and is also capable of doing simulations. There is now a demo version intended for download Price is 300 DM about 180 US.
Windows based ballistics program. Also carries a program for your Palm Pilot. From 30, accepts Pay-Pal.
PDA software. Prices start at 395.
I found a reference for some Windows software on the Hornady site, but it was the reloading manuals on disk. I have found their ballistics program at Midway. Midway costs are 31.99 June 1997.
A amount of software packages for PDAs. They also sell rifle scopes make use of with their software.
Knight s Armament BulletFlight can be a military-grade ballistic computer that delivers quick solutions within the field. Software with the iPhone and iPod.
Exterior there can be an interior ballistics program available Ballistics program for DOS. 12.95. Demo designed for download.
Currently in beta. Cost is 45 to the first year and 10/year thereafter, including free upgrades.
An external ballistics package for Pocket PC, Palm Pilots and Windows. No price that I can see.
Free and shareware software pricing is 29 2 S H, interior ballistics info along with references.
Windows based software program for rifle, handgun, and shotgun shooters and reloaders. 49.95-69.95. NOTE: This is no way associated with the program, On Target!, which I employed to sell.
Windows PC Ballistics and Reloading program. Free!
Prodas, PRO jectile D esign and A nalysis S ystem. A professional system used by many countries. I cannot get a price anywhere - - I are already told it really is about 6000.
Freeware ballistics program from Reinhard Becker.
qBal Ballistics Simulator is usually a full feature external ballistics calculator software for shooter enthusiasts and hunters. qBal offers high precision ballistics calculation, through an interface that has been designed in the beginning to get simple to work with. Freeware ballistics program from Reinhard Becker. 5.
External QuickTARGET and internal QuickLOAD ballistics programs. You can see more over it here.
Ballistics, Reloading and Recreational software for Macintosh and Windows.
Reloading and ballistics software from Sweden. Price is 30 USD.
Ballistics software for that hunter, reloader and target shooter. Free one month trial. 39.95.
Sierra s new Window s ballistics program. It is supposed for being available January, 1999. 59.99 S H.
A number of ten Window s programs for competitive and high power shooters. 38.50.
A new, free ballistics program for Unix and Windows. It is distributed beneath the GNU public license. Distributed to be a compilable C program, or even in Python.
Ballistic calculator for Mac OS X. It definitely seems to be free.
Simple, accurate and practical. An online program.
DOS ballistics program from Tioga Engineering, Pennsylvania. You can contact them at Box 913, Wellsboro, PA, 16901, 505 724-3533 thanks Don! 24.
Shareware exterior ballistics software, 10 Registration Fee. There is additionally a group size calculator, also 10.
An version of my online programs the web based versions are available beneath the GNU Public License and are accessible for download.
An online trajectory calculator. They also have a recoil and calculator.
My site specialized in small arms ballistics You re already here!. You will find online calculations for Ballistic Coefficients, Maximum Range, Trajectories, etc.
Hornadys new and improved calculator includes both basic and advanced features.
Nikons over the internet calculator using a number of nice features.
Java based ballistics program that can offer data for hunting and match bullets. Click within the Ballistic link around the menu.
All content and logos 2010-2013, JBM Ballistics, LLC
Pointers to ballistics software available around the web and elsewhere. I have not used most of those programs, so I am not trying to review or maybe recommend any of them. This page is used to be a central spot for people to find what on earth is available. If you have or recognize any other software that just isn't listed here, please inform me. Dead links are removed from time and energy to time - - usually if Google cannot see them anymore.
Programs are listed alphabetically by name by 50 % sections. The first section, Programs lists those commercial and free programs that I currently be aware of. The second section, Web Based, lists online calculation programs.
Windows based ballistics program for small arms and airguns. Nice Windows installer. Free.
Windows ballistics program coded in Visual Basic. Has lots of features like many with the programs here. Price is 49.95 using a CD.
Ballistic is often a fast, highly-accurate ballistic trajectory calculator and range companion for that iPhone. Currently 3.99 US.
A modified Pejsa model implemented within a spreadsheet. Free.
External ballistics programs for DOS and Windows with demo. 60-70.
A shareware ballistics program by Helge Peters for Apple/Mac. The program containes 8 different functions for sport shooters, hunters and reloaders. The prices are 20.00 US.
Barnes Windows based ballistics program, version 2. Runs on Windows 95 or more. Price is 49.95 19.95 upgrade is obtainable.
They involve some ballistics programs about, including a 22 caliber program, barrel twist and powder equivalence chart. Free.
Exterior ballistics program from Shooting Chrony Inc. 19.95 to 54.95. Used to become PC/Bullet.
A DOS based program from R. Nennstiel. This program runs on the modified point mass trajectory and is particularly capable of doing simulations. There is now a demo version readily available for download Price is 300 DM about 180 US.
Windows based ballistics program. Also includes a program with the Palm Pilot. From 30, accepts Pay-Pal.
PDA software. Prices start at 395.
I found a reference to many Windows software on the Hornady site, but it was the reloading manuals on disk. I have found their ballistics program at Midway. Midway prices are 31.99 June 1997.
A variety of software packages for PDAs. They also sell rifle scopes to make use of with their software.
Knight s Armament BulletFlight is usually a military-grade ballistic computer that delivers quick solutions inside the field. Software with the iPhone and iPod.
Exterior there is definitely an interior ballistics program available Ballistics program for DOS. 12.95. Demo intended for download.
Currently in beta. Cost is 45 to the first year and 10/year thereafter, including free upgrades.
An external ballistics package for Pocket PC, Palm Pilots and Windows. No price that I can see.
Free and shareware software pricing is 29 2 S H, interior ballistics info along with references.
Windows based software for rifle, handgun, and shotgun shooters and reloaders. 49.95-69.95. NOTE: This was in no way associated with it, On Target!, which I familiar with sell.
Windows PC Ballistics and Reloading program. Free!
Prodas, PRO jectile D esign and A nalysis S ystem. A professional system used by many countries. I cannot look for a price anywhere - - I happen to be told it truly is about 6000.
Freeware ballistics program from Reinhard Becker.
qBal Ballistics Simulator is really a full feature external ballistics calculator software for shooter enthusiasts and hunters. qBal offers high precision ballistics calculation, by having an interface that had been designed in the beginning to get simple to utilize. Freeware ballistics program from Reinhard Becker. 5.
External QuickTARGET and internal QuickLOAD ballistics programs. You can understand more about this here.
Ballistics, Reloading and Recreational software for Macintosh and Windows.
Reloading and ballistics software from Sweden. Price is 30 USD.
Ballistics software to the hunter, reloader and target shooter. Free one month trial. 39.95.
Sierra s new Window s ballistics program. It is supposed to become available January, 1999. 59.99 S H.
Silhouette Ballistics Version 9.0
A pair of ten Window s programs for competitive and high power shooters. 38.50.
A new, free ballistics program for Unix and Windows. It is distributed in the GNU public license. Distributed as being a compilable C program, maybe in Python.
Ballistic calculator for Mac OS X. It definitely seems to be free.
Simple, accurate and practical. An online program.
DOS ballistics program from Tioga Engineering, Pennsylvania. You can contact them at Box 913, Wellsboro, PA, 16901, 505 724-3533 thanks Don! 24.
Shareware exterior ballistics software, 10 Registration Fee. There is fashionable group size calculator, also 10.
An version of my online programs the web versions are available underneath the GNU Public License and are designed for download.
An online trajectory calculator. They also have a recoil as well as calculator.
My site devoted to small arms ballistics You re already here!. You will find online calculations for Ballistic Coefficients, Maximum Range, Trajectories, etc.
Hornadys new and improved calculator includes both basic and advanced features.
Nikons over the internet calculator which has a number of nice features.
Java based ballistics program providing you with data for hunting and match bullets. Click for the Ballistic link within the menu.
BallCalc is try to make an excellent, easy to make use of, full featured and FREE!!! ballistics calculator for that Windows Mobile based within the GNU External Ballistics engine, and ultimately
Point Mass Balistics Solver principal purpose is as a simple and simple-to-use software application that allows you to execute various ballistics calculations. Point Mass Balistics Solver was made in Java which enable it to run on multiple platforms. Now it is possible to
XIRR Calculator is often a simple but powerful application that may calculate the annual internal rate of return XIRR Calculator can be a simple but powerful application that could calculate the annual internal rate of return for almost any number of cash flows.
MITCalc - Internal Spur Gears is surely an Excel spreadsheet intended for geometric design and appearance of spur gearing with straight and helical toothing. The calculations use procedures, algorithms and data from standards ANSI, ISO, DIN, BS and
Calculate the sonic velocity of any specified gas flowing in the pipe. Sonic velocity is usually known as speed of sound. This is primarily the sound velocity from the internal substance within a pipe. This calculator is principally targets process and chemical
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An easy-to-use calculator having a visual tape that actually works like a spreadsheet, saving all calculations and permitting entries being updated. One-click integration with Microsoft Excel allows simple calculations to evolve into complex spreadsheets.
Win95, Win98, WinME, WinXP, Windows2000
Free Subnet Calculator tool from SolarWinds generates all subnets with real-time DNS, PING and CIDR tests. This application provides address details, a classful subnet creator, a CIDR calculator and subnet address lists that could be exported.
WinNT 3.x, WinNT 4.x, Windows2000, WinXP, Windows2003
This free loan comparison calculator for Windows means that you can quickly calculate loan instalments based upon variable payment frequency. It lets you compare two loans side-by-side and calculates Principal, Interest, Taxes and Insurance!
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Calculate house loan payments using this free loan payment calculator for Windows This free loan payment calculator for Windows means that you can quickly calculate mortgage loan repayments. Free Mortgage Payment Calculator can be a financial calculator suitable for Windows 2000, XP and Vista systems.
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Compare 135 loans at the same time with LoanSpread Loan Comparison Calculator and drill on to a loan report on any in the 135 you end up picking. Displays answers of loan amounts, interest levels, terms in months, or payment amounts dependant on your loan
WinNT 4.x, Windows2000, WinXP, Windows2003, Windows Vista
The MoneyToys - Loan Spread Calculator applet is built to provide webmasters having a simple solution to add instant interactivity to a website by providing users which has a financial calculator applet which gives a unique persepctive on borrowing money!
A fast, easy-to-use bunch of 33 financial calculators. Includes amortization, car loan calculator, balloon, compound/simple interest, bond value yields, present future value, annuity, IRR, NPV, budget, net worth. Many more.
Win95, Win98, WinME, WinNT 4.x, WinXP, Windows2000
BallCalc is seek to make a superb, easy make use of, full featured and FREE!!! ballistics calculator for your Windows Mobile based around the GNU External Ballistics engine, and in the end
Point Mass Balistics Solver function is as a simple and-to-use software package that allows you to complete various ballistics calculations. Point Mass Balistics Solver was made in Java which enable it to run on multiple platforms. Now you may
XIRR Calculator is usually a simple but powerful application which will calculate the annual internal rate of return XIRR Calculator is often a simple but powerful application that can calculate the annual internal rate of return for virtually every number of cash flows.
MITCalc - Internal Spur Gears is surely an Excel spreadsheet designed for geometric design and appearance of spur gearing with straight and helical toothing. The calculations use procedures, algorithms and data from standards ANSI, ISO, DIN, BS and
Calculate the sonic velocity of your specified gas flowing in a very pipe. Sonic velocity is usually known as speed of sound. This is usually the sound velocity in the internal substance inside a pipe. This calculator is principally targets process and chemical
WinVista, WinVista x64, Windows Vista, Windows 8
An easy-to-use calculator using a visual tape that actually works like a spreadsheet, saving all calculations and permitting entries to become updated. One-click integration with Microsoft Excel allows simple calculations to evolve into complex spreadsheets.
Win95, Win98, WinME, WinXP, Windows2000
Free Subnet Calculator tool from SolarWinds generates all subnets with real-time DNS, PING and CIDR tests. This application provides address details, a classful subnet creator, a CIDR calculator and subnet address lists that could be exported.
WinNT 3.x, WinNT 4.x, Windows2000, WinXP, Windows2003
This free loan comparison calculator for Windows permits you to quickly calculate loan repayments based upon variable payment frequency. It lets you compare two loans side-by-side and calculates Principal, Interest, Taxes and Insurance!
WinNT 4.x, Windows2000, WinXP, Windows2003, Windows Vista
Calculate home mortgage payments on this free payment calculator for Windows This free loan payment calculator for Windows lets you quickly calculate mortgage loan repayments. Free Mortgage Payment Calculator is usually a financial calculator made for Windows 2000, XP and Vista systems.
WinNT 4.x, Windows2000, WinXP, Windows2003, Windows Vista
Compare 135 loans at a time with LoanSpread Loan Comparison Calculator and drill on to a loan breakdown of any in the 135 you select. Displays answers of loan amounts, rates of interest, terms in months, or payment amounts in relation to your loan
WinNT 4.x, Windows2000, WinXP, Windows2003, Windows Vista
The MoneyToys - Loan Spread Calculator applet was created to provide webmasters which has a simple method to add instant interactivity to a website by providing users having a financial calculator applet which gives a unique persepctive on borrowing money!
A fast, easy-to-use variety of 33 financial calculators. Includes amortization, car loan calculator, balloon, compound/simple interest, bond value yields, present future value, annuity, IRR, NPV, budget, net worth. Many more.
Win95, Win98, WinME, WinNT 4.x, WinXP, Windows2000
2/2/11 - Run BurnSim on Linux under WINE!
1/30/11 - Version 3.1.8 released!
3/14/10 - Version 3.1.6 released!
BurnSim is often a solid rocket steady-state ballistic simulation software package for your Windows platform. In a nutshell, input your motor, nozzle and propellant characteristics and BurnSim calculates the Kn with the burn and predicts estimated chamber pressure and motor performance. Once your motor design was in BurnSim, you'll be able to tweak the parameters like nozzle diameter or grain core diameter and instantly see what sort of Kn, chamber pressure, and motor thrust is affected. BurnSim will even optimize your nozzle design.
Motor designs in BurnSim could be saved and recalled . In addition, test data might be imported and graphed alongside simulation data that compares sims to results. BurnSim permits you to make notes about your propellants and motor designs, all residing in one convenient location.
Once youre happy with all the your motor design, BurnSim may then export register for use in RockSim, wRasp or any other rocket flight simulators. You may also export the data to some text file comma delimited for utilization in virtually any system. You can estimate your motors performance and rockets flight before you even cast a grain!
Instantly visit a graph of Kn, chamber pressure, thrust, and see the way it changes after you change motor attributes.
Graph Mass Flux within the burn, a price that is usually used to evaluate erosive burning
Save your motor designs and propellant characteristics, also as notes and imported test data
Export predicted motor performance files comma delimited text files in order to use Excel or any program.
Optimize your nozzle design for max performance.
Cant tell how ya much Ive benfited through your new program. Did lots of mixing a final 2 weeks over 75 lbs, each motor I designed together with the aide of the BurnSim tool performed as predicted. On one flight I used import feature for Wrasp, and my predicted altitude of 6281 was off 3 feet per Adept! Ya got successful there ole buddy, interesting hard work. As far as Im concerned, I still owe ya
President Tripoli Amarillo, L3CC, TAP
Additional Grain types, requests?
Graphical grain iteration, allowing for virtually any 2D grain shapes
Dont hesitate to get hold of me at with any bug reports, suggestions or anything by any means.
BurnSim estimates chamber pressure and gratification assuming steady state operation. BurnSim currently does NOT bear in mind erosive burning effects that may significantly raise chamber pressures in motors with good L/D ratios. Test all motors in a very safe environment, try to assume the motor can fail. Be prepared.
A Personal license for BurnSim is just 39. The Personal license entitles one persons by using BurnSim version 3.0, nearly 5 installationsreinstalls. For multiple users, volume discounts can be found. Please call us for details.
Please download BurnSim and try against eachother. Thank you for your support, license fees cover the prices of continued development and improvements to BurnSim.
License fees could be purchased with via Paypal, or which has a credit card, or checkmoney order. Please go towards the Secure Payment Page to purchase license.