Quote:
Originally Posted by 1blindref
...the bore in the barrel and chambers are mirror bright....
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It's a crisp enough example that I can believe this. However, it's not atypical for ones that have been shot a bit more to have a ring (or donut, if you prefer) of pitting about an inch in from the muzzle. You normally need a magnifying glass to see this clearly, but it certainly occurs. I suspect .22 ammunition back in the day used corrosive priming, and that for some technical reason the residue accumulated at that specific point in the barrel, so if the revolver wasn't cleaned religiously, it ate up the bore there. It doesn't seem to affect accuracy, though.