A lot of guys on this site have been loading the 6 Creed 200-300 fps beyond pressure tested 243 loads, obviously above 70,000psi.
Most have claimed great case life and I believe them, but....
Yeah, I think this is a way to eek another 100 fps for LR and match shooters and is part of an "efficiency" claim that isnt there along with substantiated accuracy/consistency.
