Friend bought a .450 Bushmaster upper for his AR-15 and can't find any Large Rifle primers.
Ammo is roughly $2 a pop but you're left with a reloadable case afterwards.
He currently reloads for .45ACP and .45 Colt so he has bullets and powder that could possibly be used, along with Large Pistol primers and he thinks the two are interchangeable
I'm not so sure as I've heard rifle primers have a thicker cup to handle higher pressures.
Do any of you know for sure?
...oops wrong forum, oh well, do any of you know the answer?