Well, we got 1024Megabytes out here and shot the 18” 308, turns out the bolt head on the BCA bolt isn’t working right. Tried all sorts of trade offs and combinations of lowers, BCG, or bolt heads, and any time that bolt head was in the gun, it would extract but not eject properly unless there was no mag under it. So maybe the ejector, maybe the extractor in combination with the ejector, but once we put my bolt head in the gun, it ran fine, so the barrel wasn’t the issue. The ejector seemed plenty strong, so I suspect the extractor is letting go too easy, or holding on too long, but it usually ended up with the empty stove-piped sideways over the round being stripped and headed into the chamber. We shot 300 BO, 9mm, .308, 5.56, .380, and some .40 cal. And man, was it hot out there.