Here's a picture Doug sent to me several years ago of the barrel on his 1894 Winchester .38-55 which he reblued with his slow rust bluing formula and process. As you can see, he did not stop with the 320 grit we had been told was as far as was practical.
I had a picture on my old cell phone that I took outdoors of a set of Fox Sterlingworth barrels I blued using Doug's process. Unfortunately, I lost most of my pics when I neglected to back them up. I noticed some unusual blotches in the picture of my barrels that I couldn't see when examining them. Then I realized that the blotches were reflections of a few clouds in the otherwise clear sky. As I told Doug, that's the kind of gloss you expect to see on a Colt Python, not from slow rust bluing.
