What loads shoot the best in this rifle?
Thanks in advance

I have this same gun. I use 180 accubonds, cci br2 primers, and a bunch of IMR 4350! I use magpro powder in my 270 wsm and have been thinking of trying it in the 300 wsm but havent yet! Good luck you should like the rifle I sure do! but they need a triger job or a timney. Good luck! Curly

I shoot half-minute in my 300WSM with its Krieger barrel-- 29 inches long, 1:10 twist. It sports a 10-40X scope and weighs eighteen pounds. I use 65 grains of RL-22 or H4831SC and the Sierra 180-grain HPBT MatchKing in common Winchester WSM brass and whatever Large Rifle Magnum primer I happen to have on hand...