Thanks a bunch, I can't believe there is a program for that too bad I have a mac and will have to use a friend's computer though.

I have everything I need to build a pneumatic launcher with a 2 inch wide chamber and a .5 inch wide barrel. I want to make it as light and wieldy as possible so I was wondering if anyone knows of an optimum air chamber volume to barrel size ratios. I am worried about making the chamber either over ...