Damaged casing, no go? : r/ar15

Disappointing: Kel-Tecs RFB 7.62 Forward-Ejecting Bullpup - Gun Tests

What does an AR-15 do to a human body? A visual examination of the deadly damage. - Washington Post

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Why are my spent casings deformed?? (More info in comments) : r/ar15

Rifle Borescope: Best Borescope for Rifle Barrels (iPhone + Android)

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Do you guys shoot .223 or 5.56 more? : r/ar15

Ar won't feed and dents casing pretty bad. Any ideas what's happening and how I can fix it? : r/ar15

Gobi Campaign scout rifle, Fallout Wiki