I do polish them, well, stone them, really. I do it the same way I do most of my polishing/blending, with mold polishing stones. It generally doesn't take much, a five minute job, that should give you an idea of how much metal comes off. Maybe a thou. Some are really rough, most are fair to start with. I just smooth 'em up and get all the lines going up and down, usually hit it with a 300 stone and then give it a couple swipes with a 600. For a person without the stones, I'd say a popsicle stick and some 400 wet/dry paper, wet with WD40, would work just as well. I also give the firing pin hole a tiny chamfer by hand, on top, with a little carbide three-cornered thing I have made. Every once in a while you'll get a gun where the case rim, sliding up the breechface, will get hooked in the FP hole; the little chamfer prevents this.
[This message has been edited by Ned Christiansen (edited 12-03-2001).]