Got a buddy who bought a batch of LC 10 brass. He removed the military crimp, loaded 55 grain bullets with a starting charge of H335 and is getting primers that are blowing out of the pocket on every shot. I double checked his crimp removing routine and he is not removing too much crimp, because that was my first thought. When he is seating the primers after removing the slightest amount of the crimp they are seating firmly and are not going in easily.
It is not a rifle issue because other brass reloaded to the same specs performs flawlessly. He is shooting an AR15.
Any ideas?
Thanks!