Loads that have worked well for me in a Remington 700PSS and AR10.
Sierra 168 gr HPBT MatchKing
Remington 9-1/2 BR Primers
Winchester brass Trim length 2.010 / 2.015
Varget or ReLoader 15 Powder, I'd recommend starting around 42 grains of either and working up. I've had a little better results with Varget, but not a huge difference.
COL 2.810 / 2.815
For a less costly, not quite as accurate, but still decent load try Winchester's 147 gr FMJBT. Start with the same components as above but start with 46 grains of WW748 and work up. You'll see a much larger COL tolerance based upon the bullet but it's still a very accurate load.
Take Care
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