to a junior member like me the inch system seem to be a peculiarity .in all matters of fire arms.
why this industry has not adopted metric system ?
Obviously, I couldn't resist...
If God wanted us to use the metric system, he'd have given us ten fingers and ten toes.
Besides, it's a lot easier to find a rhyme for "forty-five" in a country-western song than it is to find one for "eleven point two-five millimeter".