I have a Sako A7S fluted barrel in 300 WSM, shoots HSM 168 and 185 Bergers into 1/2" and 5/8" groups and I ain't that good a bench shooter! I'm using a NF SHV 4-14 scope on 14 while shooting. I have a Remington 300 WSM and it really likes the Winchester XP3 150 grain Ballistic Tips. I don't shoot this rifle so well, it seems to kick more, I have a friend here on the fire that has shot 1.5" groups at 200 yards with this load. Good luck.