From my previous post: "...even at 60k CUP, crimping primers should not be the cause of primers popping out of cases." Obviously not. This is so poorly worded that even I can't tell what I meant! My hat is off to you guys who deal with this grammar thing day in and day out!

I thought 60k CUP sounded high too. What I was trying to ask above is what the reason for crimping primers in the military ammo is. Is it because of the higher pressure, or is it because they are running this stuff in full-auto mode? Thanks for the replies!