A brass brushing with Hoppes #9 followed by a soft cloth w/ a dab of Flitz has the cylinder faces of all my stainless revolvers looking like brand new. I have had good results with Butch's Bore shine with a .40 cal. brass brush for the chambers followed by tight fitting cloth patches until clean. I know it's not part of the cylinder but don't forget to clean the forcing cone area and also under the ejector star with a brass brush and your favorite cleaner. I use no power tools. The earlier post was almost right, you can't make a blued or alloy gun look brand new BUT you definitely can make an all stainless S&W or Colt revolver look brand new. Ruger's are a little tougher because the "cast" stainless has pores.