i'm new here and it's my first post, but the wear on the bump on the sideplate as shown above looks like normal peening to me. IIRC, I read somebody's post on the rimfirecentral.com forum that the bump can be polished off.
I'll take a look at mine tonight, but I don't recall seeing any wear like that when cleaning it last week. We've probably got just under 1k rounds through it at this time.
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