08-27-2018, 06:43 PM
I have had a problem with the Nib BCG however none with the nitrided BCG I have just received a replacement barre (20" premium). It is still in break in with only 50 rounds through it. Didn't get a chance to run the the NiB BCG today in it. The barrel extension on the Premium barrel is also Nib. I suspect that the previous problems were with an out of spec Nib BCG. Toolcraft replaced it no questions. Best group today was .972. I cleaned it pretty good before I went to range. I suspect that added material to the BCG and the extension may have been the problem. With proper load development I expect this one to be sub moa. Oh load was 27.7 8028xbr. GM205m primer and Starline brass, OAL 2.230 (need to play with that a bit).