.30 M2 used a 152 grain, flat based, bullet not a 150. A 150 is close enough though. Two grains either way won't matter. There's a tolerance given in Hatcher's Book of the Garand. .30 M1 ammo used a 174.5 grain BT bullet at 2640 FPS. The M1 Rifle was designed to use and tested using .30 M1 ammo. However, the ogive makes no difference of any kind.
.30 AP used a 168 grain bullet and was used in the same weapons as .30 M2.
3.340" is the Max OAL for .30-06. It works out of any .30-06 rifle. Minimum OAL according to SAAMI(that came after the U.S. Ordnance Board set the dimensions), is 2.940".
3.325” will be perfectly safe. I think that box of bullets may be from some place other than the U.S. though. Don't really think it matters either. The milsurp 147's made for 7.62Nato work just fine out of a .30-06 too.
Last edited by Sunray; 08-07-2019 at 11:05.
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