I have a 20" AR with a nice BA stainless barrel that prints ragged holes at moderate distances with about any ammo. For the cool factor, I put a Brownell's matte chrome BCG in it I bought recently.
It won't cycle every third or so round- gas rings, or something else is wrong with the bolt.
But even then, the accuracy is terrible with it! Same ammo, same gun, milspec on left (5 shots), chrome on right (3 before no cycle). I'm not even going to ask "can a bolt affect accuracy", but more pointedly- how would a bad bolt affect accuracy? I'm sure the answer is going to be 'headspace', but I don't have a gauge to test. In any case, it'll go back to Brownells, simply because it doesn't cycle.
It won't cycle every third or so round- gas rings, or something else is wrong with the bolt.
But even then, the accuracy is terrible with it! Same ammo, same gun, milspec on left (5 shots), chrome on right (3 before no cycle). I'm not even going to ask "can a bolt affect accuracy", but more pointedly- how would a bad bolt affect accuracy? I'm sure the answer is going to be 'headspace', but I don't have a gauge to test. In any case, it'll go back to Brownells, simply because it doesn't cycle.
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