Have a Ruger MKII "TARGET" roll stamped on the receiver, has one of the heavy taper 6 7/8" barrel...almost every one of these I've come across has been badly abused it seems like. This one just has cosmetic issues. Anyways the previous owner polished the **** out of the front sight band (that is machined into the barrel right?) to a mirror finish....really shows all the deep scratches and scuffs now. I want to finish just the front part back to match the rest of the gun but if I have to I'll do the whole gun, my question is seeing how shiny that is and how it has not rusted is there a lot of chromium or whatever in the alloy? What kind of bluing method should I use? I have a friend doing Belgian and I think this might be a good candidate to try it on....but I have read rust is involved and that gives me pause. Is the rust superficial?