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Dented brass... is this a problem?
Hello all, this is my first AR and I built the lower, which is a Bushmaster receiver with a PSA lower build kit and an H buffer. The upper is a PSA premium with FN barrel and mid length gas system. The ammo is Federal 5.56 xm193. Ejection is at about 4:00 and the brass flies ten feet or so.
I've done a lot of research and I don't think I have any problems but I wanted to ask just to make sure. The brass is hitting the deflector and getting dinged pretty good just behind the shoulder and I wanted to confirm here that it isn't over gassed. I've included pictures of the brass and also the deflector so you can see where the impact is occurring.
Finally, I'm still not entirely clear what the signs of over gassing are. I know if rims are getting ripped it's a sign but is there anything else?