The bullet diameter is not a problem. I have 45-70s a 458 American and a 458 SOCOM. A few cast bullets from 300 gr to 700 gr Flatpoint and quite a variety of jacketed from 300 to 350 X, gummie bear tipped Hornadys, and some FMJs are on the shelves. It is just that I wanted a stainless barrel and a fast twist. Probably a threaded muzzle would facilitate future suppressor use. Still formulating the build but I may do as you are suggesting or buy a used gun I find. Thanks for the ideas, I'm still listening, Be Well, Rustyzipper.
