Originally Posted By Geohans:
Did your 20rd pmags work? Mine did not; first two I tried gave me bolt over malfs.
Otherwise great work. 69 is good with these barrels, better at 100 than 77
I have 5 20-rounders... except for the fact that one of them does not hold the bolt open, they all function flawlessly.
I haven't tried 77gr SMKs yet, but once my reloading dies get here, I'll try some out. I doubt I'll ever catch any BHA 77gr SMKs in stock, but I can load my own! The 69 grainers did do better than any of the Hornady 75gr loads I tried, though (Hornady and BHA), as well as some BHA reloads with 55gr Vmax bullets and any 55gr FMJ loads I had. My other BCM upper does best with Hornady 5.56mm TAP, with .223 TAP coming in a close second and BHA 55gr Vmax reloads not far behind those. The Stealth outshoots it by far (as expected) with BHA 69gr SMKs, though.