first I polished the gun as evenly as I could with 400 grit wet/dry (dry) in a horizontal grain. Because I have done some rust blue jobs I just happened to have one of Brownells small (toothbrush size) stainless steel carding brushes. I also find this to be an excellent burnishing tool. So I used it to burnish the gun in the same horizontal grain. This has an almost magical effect on the 400 grit finish. I need to try different polishing grits like maybe 500 grit would work even better. Hope this makes sense.