I would have to say that is not a used revolver, but an abused revolver. Whoever owned it certainly did not appreciate it nor give it the care a stainless firearm requires. The pitting is the permanent damage and in my experience, it takes a good amount of neglect to get a stainless firearm into this sad of a condition. It will always bear the scars of it's abused past, but at least you are doing it a great service by saving it.

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VCDL, GOA, NRA