Hello All, I was cleaning a stainless revolver that I borrowed from my father. He is horrible at cleaning, and rarely does! The revolver shot fine and was accurate, but when cleaning it afterward, I noticed some shiny aluminum looking bits coming off on my patches. when shining a light in the bore, it seems like there is some nasty looking build-up near the bore, just where the rifling starts. At least I hope it is just build-up! Is there any chance that the interior of this barrel could be somehow shedding bits of metal, from years of neglect? are the shiny bits of metal just lead build up? I have never seen build up do this...but then again, i have never neglected my weapons like this!