05-11-2022, 07:20 PM
A lot of my factory Hornady ammo brass has ejector swipes after being fired in a couple of my AR-15s. If the primers look ok I dont worry about it. I have a 16 carbine gas length upper that was over gassed and it was the worst for having ejector swipe on the brass. I started using a RCA adjustable gas carrier key and reducing the gas has helped to reduce the marks on my brass.
Ive noticed ejector swipes over the years on 5.56/223 ammo and never got concerned under most circumstances. Once some of our Department Lake City 55 grain M-193 5.56 popped a couple of primers. It was hot one day which might have been a contributing factor. One blown primer locked up one of the Armalite 16 carbines during a qualification. As far as I could tell the popped primers happened on different days in different firearms.
Ive noticed ejector swipes over the years on 5.56/223 ammo and never got concerned under most circumstances. Once some of our Department Lake City 55 grain M-193 5.56 popped a couple of primers. It was hot one day which might have been a contributing factor. One blown primer locked up one of the Armalite 16 carbines during a qualification. As far as I could tell the popped primers happened on different days in different firearms.

