Can't really say I care much about sub-M.O.A. groups. I have one dedicated big game rifle (factory 700 ADL, shooting factory ammo, with a fair amount of copper in the bore at any given time) that I consistently group 1.25-1.5". It's fun to shoot even if I do get that bad flyer, and the deer don't know the difference whether I liquify a lung an inch this way or that.

To me it's all about putting that first shot where you want it, not shooting a jagged hole from the bench. Good enough is good enough.