I've noticed a few topics about this on the board and would really like Art's input. I've got over 800 rounds of the X-treme with orange stickers on the top with 50604 on it. This is large primer SSA head stamped brass. I bought a thousand rounds, and the initial boxes were small primer brass. The latest boxes I've shot all had feeding problems, although I cannot fully rule out the magazines on that. I've got a Cardinal Armory 18" SS barrel. Is this safe to keep shooting? I.e., Art if you say I'm good to go, I'll feel much better about it.