Look at it this way,
When I say "out shoot the rifle" I mean if you have a 2 MOA rifle and constantly shoot that rifle at 2 MOA, then its time to move up in equipment.
When I first got my M1A (1977) it was a standard grade. I reached a point in High Power where I could shoot certain scores and could not improve. I could outshoot the rifle.
I gave my rifle to the All Guard Armors at the Wilson Matches (National Guard Championships) who converted it to a Super Match. Only then could I improve to the point I could shoot master scores and get my Distinguished Rifle badge.
You can add 2 MOA plus 1 MOA and get 3 MOA all you want. There comes a point where it is time to move on, or move up rifle wise if you want to improve.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071