I re-contoured the backstraps on my 1860s by sanding off some of the "excess" metal. I've always been going to refinish them in brown or blue. I just went and looked at them and they are a uniform gray. I use Ballistol for cleaning and assume the coloration is a natural oxidation controlled by the Ballistol so that it doesn't go to rust?
They look good so no refinishing will be done
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