I think I can help you there from experience. At my club I developed the Oreo Cookie Pocket Pistol Shoot. The definition of a pocket pistol was a revolver with a barrel length of 3 inches or less or a semiautomatic pistol with a barrel length of 4 inches or less. A Colt Commander was not legal, a Colt Officer's Model was. And we really did use Oreo cookies as targets. There were probably a lot of happy birds, possums and skunks after the match.