Which bullets are interchangeable? I know a .357 can shoot .38 and .38 Special. A .44 magnum can shoot .44 special but not the other way around. A .22 LR can shoot .22, .22 short and .22CB but I would like to compile a list of calibers that can be switched besides the obvious. Is it true that a 454 Casull can also chamber a .45acp or .45 long colt? By that I mean a revolver would be .454 or .45lc and a semi would be .454 or .45acp. I found a lone 9mm Luger at the pistol range the other day, can I shoot it through any 9mm? I'm not advocating experimentation, just a sharing of proven facts. Let's be safe while we enjoy shooting things.