Ok to clarify, I worked up to 62.5gr when I was doing max pressure tests and that was when I pierced my first primer, so I backed off and found a node at 60.1, there were no pierced primers with it at first. When I loaded about 30 of this load up for a some more testing I occasionally pierced them, then it got a little more frequent. I then sent my bolt in to be bushed and the pin turned. I had fewer pierces but there were still some, so I backed off to 58.5 and am still having some. The holes are not nearly as gaping now, they are a normal strike with a tiny little pierce in the bottom of the strike. I still have probably 2/10 pierced with 58.5gr and a bushed bolt/turned pin. I think I'm going to polish the pin down a few thousandths and blunt the curve a bit and use the BR2's. I just don't know what else it could be, since I have not FL sized the brass. This is all 2-3 time fired brass so headspace couldn't be an issue..
