[Unclenick]

I've never used Nu-Finish in a tumbler, but I have some in my garage that I got for an old car I had long ago. It leaves some kind of wetting film behind that acts a little like a glaze on oxidized paint so the original color shows better. I'm not really interested in adding anything like that to my brass, though it may not hurt, either. I just don't like the idea of putting lubricant in the chamber, at least, not for high power rifle. Especially when there's really no need to. Lots of stuff available that doesn't have that.