300 BLACKOUT BULK AMMO OPTIONS

Quoted: I don't know my rounds counts, but I've two .300 Blk SBRs the two of these have well over that, most with a Suppressor And that i haven't had any difficulties yet.Nope.  You happen to be burning more powder than .22 LR, and also your ear is correct next to the ejection port, combined with the buffer and spring bouncing all over during the