- Jul 29, 2014
- 49,810
Thanks everyone... to those going 300 BLK, are you doing a suppressed rifle? If so, what barrel length and gas system? From what I've read, it looks like there are significant reliability issues in unsuppressed rifles shooting either subsonic 220+ gr bullets, or in lighter bullets (hyper sonic) without tweaking the gas system. It looks like the cartridge was designed to be run suppressed using subsonic 220+ gr projectiles...
Yes. Pistol length gas port with SLR adjustable gas block(pinned), 10.5'' bbl. and a Thunderbeast can. The gas block is the key part here. Don't settle for a three setting (on, suppressed, off) "adjustable'' gas block. Get an SLR for about $120 and don't look back.