Re: Nosler Brass
I am shooting 44.5 gr H4350 with 88 gr Berger FB, 44.1 gr with 90 gr Berger BTs and 46.5 gr H4831sc with 87 gr VMAX with the .243 Nosler brass. I am on my third and fourth firings. The primer pockets are as tight as they were when new.
I have only a handful of 300WM brass with three and four firings on it, and they too have tight pockets. I am not pushing the pressure in the 300 WM (74 gr RL22 190 gr Berger VLD).
The volume is less than RP, WW or FC, so you will have to reduce your loads slightly.