Snav
Active Member
I noticed a blackened firing pin indentation in one of 35 loads I fired in a new rifle. Upon examination with magnifier it seems that there is a small dimple in every primer as if the pin was turned on lathe and cutoff was not complete or no polishing/deburring. I took pics but the lack of 3D doesn't do it justice. Very obvious from MKI eyeballs that it is a incomplete cutoff..
So I can clean that up but is the firing pin hardened ordinarily or would polishing it with an Arkansas stone be ok?
So I can clean that up but is the firing pin hardened ordinarily or would polishing it with an Arkansas stone be ok?