If I'm not in the proper area for this post, I apologize. I have a Ruger Super Redhawk in stainless steel and was wondering if it would be ok to clean the exterior of the cylinder with a scotch brite pad and windex (or similar cleaner) or even possibly some fine steel wool? The front exterior of the cylinder is starting to get a bit funky and I'm not sure if it's heat discoloration or something that will clean off.