alas, but gun alloy stainless can indeed "pit", it stains and it will rust, one of the main issues with some of the early Ruger stainless castings are voids, look like pitting, more often found in the Old Armys..............put a pair of rubber grips on ANY 'stainless' firearm, wether S&W or Ruger and see what happens under the rubber grips in time, if you do not oil or grease them .....wish I had a half penny for every stainless steel gun part we ever had to polish over the years, I would be RICH !!!!!! :shock: