Originally Posted by c3shooter
Flitz metal polish, soft cloth, patience.
Flitz Metal Polish is the best thing to happen to Stainless Steel firearms. Some years back I bought a new Ruger Super Redhawk in .44 Magnum with the brushed Stainless Steel finish. It's normal to find a filthy Ruger when you open the box. They proof test them, and do not clean them afterward. But mine was exceptionally dirty. I cleaned it but it still looked very dull. Not satisfied, I went over the entire gun with Flitz and a soft terrycloth rag one morning while I was watching a Formula 1 race. When I was done the gun looked brilliant.
Afterward I gave the gun a good wet cleaning in clean Kerosene, followed by a blow job with compressed air, then a good oiling. It looked like a totally different piece. After you do the whole gun, if you still see scratches you can redo the scratched areas, concentrating on them. They will disappear unless they are exceptionally deep. Just be sure to polish in the direction of the brushed finish. And don't use it on the Ruger "Target Grey" finish. Just the brushed Stainless finish. This has become a routine with me now every few months. It really keeps Stainless guns looking beautiful.