it is simple really. most aircraft,ships,tanks and rifles used the same round at that time and if you had a cartrige change you would have to swap everyone of those others out.
so if you want a M1 with a 276 that meant the 1919 would need a rechamber, well shoot now the warhawks and the B-17's need new guns along with the battleships.
People always seem to forgette that more than just infantry are effected by your main cartridge
so if you want a M1 with a 276 that meant the 1919 would need a rechamber, well shoot now the warhawks and the B-17's need new guns along with the battleships.
People always seem to forgette that more than just infantry are effected by your main cartridge