According to Schiffer Military’s book The M1 Carbine: Markings, Variants, Ammunition, Accessories, the criteria for this new weapon were to weigh less than 5 pounds, be able to be carried on a sling, ...

SAAMI is the reason 30-30 Winchester ammunition made in 2023 will fit, function, and safely fire, in a 30-30 Winchester rifle made more than 100 years ago.