My CMMG upper was pretty mediocre (3.5MOA) with Rem factory 220 gr loads, although I have not tried Supersonic in it, yet. It did better (~1.75MOA) with 220 gr MK handloads, although I'd still like to see under 1 MOA. I still need to tinker a bit more with the handloads. Or maybe I just need to get a Wilson or Noveske barrel
What primer and powder do you think is best for accurate subsonic loads? I have 1680 and Lil'Gun powder on hand.
