Small Arms Ballistics is, as the name says, a ballistics calculator for small arms fire. It is a terminal application written using curses.
Small Arms Ballistics is derived from smallball, which was written by Ole-Hj. Kristensen <okh@edeber.nta.no>. I have pretty much rewritten the entire program, but smallball got me started. All major trajectory calculations have been implemented, and a variety of bullet drag models are available.
The program needs a color capable terminal, otherwise it won't run.
See the ChangeLog.