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Discussion in 'SU-16' started by nimbly, Apr 13, 2018 at 8:42 PM.
My SU is dimpling the primers upon chambering. What causes this? Firing pin damage?
I figured it out. Apparently most guns that don't have spring loaded firing pins do it, and generally .223/5.56 is loaded with hard enough primers that it isn't an issue. Glad it isn't an issue with my gun.