With a Ruger M77Mark II 1:12 twist 22 inch barrel using once fired brass I just neck size the brass if it's fired more then once I set the shoulder back .002 running a 60 gr SPBT I like 32.5 gr Varget with a winchester WSR primer . In a Smith and Wesson 1:12 twist 22 inch barrel running 55 grain Sierra HPBT's I like the same powder , charge and primers . I have also been known to use IMR 4350 for the 55 and 60 grn bullets running them around 3200 fps mv
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