I used to shoot 150 grain core lokt out of my ruger 30-06 with "adequate" results. Just not ever real happy with them. I tried the new winchester XP3s this year and I and sold. Between them and a new timney trigger, I was was shoooting moa groups at 100 yards. This past Monday I dropped a sitting down coyote at a ranged 310 yards. That was enough proof in the pudding accuracy for me.