There are some good "big gun" discussions going on over at John's Castle Argghhh!
I especially like this post about the A-10's 30mm vulcan cannon. And make sure that you read all of the way to the end of the post! There is a story of a Sargent, and Airman, and a really big gun that you don't want to miss.
You should also check out this post, which goes into the physics of large caliber machine guns.
Posted by GEBIV at October 5, 2004 06:38 PM