Was inspecting a batch of 300 223 Remington brass I wanted to clean in my tumbler and discovered 9/10 had the dent in the shoulder area like the piece of brass in the picture I have included. I have two questions. The only semi-auto rifles I own are AR's and have always saved my brass but never really examined it all that closely before. My AR's always have functioned literally flawlessly and are quite accurate, so I never felt it necessary to look over my saved spent brass..
#1-Is this normal for brass shot from an AR and if not what could be causing it and should I be worried and how to fix it.
#2-Is the brass still safe to reload.
Thank you,
Art,
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