Free Software & Downloads



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Simple Trajectory Program (STP) v2.0 Ballistics Software

This program was developed by Brad Troyer. It is a Windows XP based program and HAS NOT been tested on previous versions of Windows. It is a simple interface and display (see image below). You will need to know the ballistics coeffiecent of your pellet. There is a calculator with the program that will calculate the BC given to velocity readings at a fixed distance. There is a readme file that explains the program and interface. This is a freeware program and may be used and distributed freely but may not be renamed, repackaged or sold without permission of the author. This is a evolving program so give it a try and email Brad Troyer with any comments or suggestions. Thanks.

Download STP 2.0 Ballistics Software

Download STP 2.0 Ballistics Software


Energy Calculator v1.0 Software

This program was developed by Brad Troyer. It is a Windows XP based program and HAS NOT been tested on previous versions of Windows. This program calculates the energy of a projectile given the weight and velociy of the projectile. This is a freeware program and may be used and distributed freely but may not be renamed, repackaged or sold without permission of the author. This is a evolving program so give it a try and email Brad Troyer with any comments or suggestions. Thanks.

Energy Calculator V1.0

Energy Calculator V1.0


Other Assorted Download Files


PCB v1.8 Exterior Ballistics Software

by (c) Odd H†vard Skevik (1996)

This program is a free ballistics program that was developed by Odd H†vard Skevik from Norway. The program is DOS based and will run under DOS, Win 3.1, Win95, Win98 and Windows 2000. It was originally designed for firearms but it is also useful for airguns. You will need to know the ballistics coeffiecent of your pellet. There is a calculator with the program that will calculate the BC given to velocity readings at a fixed distance. I have used the program for over 5 years now with great success, give it a try.

Download PCB 1.8 Exterior Ballistics Software

 

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