Thanks for the response guys. In retrospect, it would have been easier to find a picture of a rifle so finished, post it, then ask "how do I get this finish?" Thanks for the help and patience, all.
The finish I ultimately "envision" is an antique or, old, looking finish not unlike tarnished pewter, I guess. So, if I understand everybody, I should polish to a smooth finish, not to a shine? Draw filing then sanding until I have a smooth sheen then, be careful not to oil it or protect it too well because that may hinder, or slow, the naturally developing patina?
I once sampled a used rifle from TOW that was a full-stocked plains style with it's metal work all left "in the white" (their description). I decided not to keep the rifle but I loved the antiqued look of the barrel and lock and would like to recreate it on my flintlock rifle.
If I were to finish the barrel and lock, then oil it to stop any spot rusting from handling it, then remove the oil with a solution of alcohol and let it set up, would that allow the metal to due it's oxidizing/patina thing? Or, is handling and use of the rifle the best way to develop a more natural, old looking finish?
The cold bluing, then polishing, or removing the bluing, sounds interesting as I love the look of a weathered rifle who's blueing has worn away form use.