I have a 300 Norma Mag conversion for my DTA and have been having issues with difficult case extraction after firing. The problem goes away when I use virgin brass but the brass exhibiting the problem is only on it's 3rd firing. I did load some rounds warm in the beginning but not crazy hot. I primarily kept it at or below 82.5 Gr H1000, 92.0 Gr RL33, 85.3 Grains Retumbo. Chamber has 0.256" freebore so I can seat the 230 Hybrids about perfect.
Has anyone else experienced this?
Has anyone else experienced this?