I have always found that military cartridge rule intriguing. When you consider the broad range of cartridges that have been used by various armed forces around the world, it seems to be a pretty odd rule. For example, was the 22 hornet included (it was USAF issue for a while)? I know the 300 winchester magnum gets some use in france and spain, but it is current US issue. What about the 45/70? What about the 12g? Then consider weapons that have served in irregular forces around the world. At what point is a cartridge considered sufficiently "military"?
