Is the ring near the base a sign of imminent head separation? This is once fired (by me) 5.56, lake city 12-14.
I have shot other cases which had a "blurrier" version of this going on, but this kind of "hard" looking line makes me more concerned.
This is after full length resizing. The cases were shot out of an AR-15.
I have shot other cases which had a "blurrier" version of this going on, but this kind of "hard" looking line makes me more concerned.
This is after full length resizing. The cases were shot out of an AR-15.