I have an A-boilt in 30.06. It is without a doubt my most accurate big game rifle. It almost pisses me off because I have several Remington 700's that I have spent so much dough on and this is still my best shooter. I took it to the range the other day and it was the same thing over and over. Tight little groups until the barrel would heat up and then it would open up just a little. Let her cool down and right back to tight little groups. I was shooting cheap 165 grain Remington Core Lokt. It seems to shoot the 180 grain just as well.