Originally Posted by SCmasterblaster
Wow. I wonder why the caliber is omitted?
As far as the military was concerned, they covered that when they identified the ammunition as "M-2"
That was all the identification that they needed.
Much like today when troops require ammunition for their M-4 rifles, the ammunition will simply be marked on it's boxes as "M-855", "M-193", "M-856" etc., with only the manufacturer initials and year on the casing.
Think WCC-04, LC-08, and such.
Those numbers tell all the story that the need to know.