bdotson;
Not to argue but it is not uncommon, I have 2 chambers that do the same thing, @ 34 grains it is compressed, I can get 34.4 max and no more in the case. I use my own 118gr/ 1 inch jacket bullets, H 4198 powder, Lapua cases with a .330 neck, .324 neck bushing and the chamber is Robinette...