Well it took me a few days to get around to getting this set up, but I think it's working now. I made a download page where you can download three different programs. One calculates the trajectory of a bullet for a gun sighted in at 100,150 or 200 yards. it makes a table similar to those often published in magazines. This code uses a composite drag coefficient function, sort of a mix of the G1-G7 functions.
The second program calculates the trajectory for a selected elevation angle. It also plots the calculated drag function. If you fire at a large elevation angle (300 min.) a supersonic bullet will slow into the subsonic range and the drag function will show the effect. For low elevation angles the bullet remains supersonic and there isn't much shape to the cd function.
The third program is a simulator of internal ballistics. It is mostly educational and can't be used for developing loads etc.
The executables some README files and a dll file that they need are in zip file that must be uncompressed.
The download page has only these three links. There is no advertising or even a link to my home page or any other page.....doc
http://66.49.163.218/ballisticslinks.html