I’m using right at a max load of IMR 4831 and a 180 Nosler BT. I worked the load out for my son’s 300, because his gun is a little touchy. But my handload got it down to under 3/4 MOA. My 300 shoots practically everything well. When I tried his load in my gun I was cutting out the same hole at 100 yds. So, we shoot the same shells now. That makes things really easy with no chance for confusing shells.