RE: Big Bore Revolver
I've had some experience with the .45-70's, didn't really care for them, since my .44 mag can do almost the same as the old round, and the .454 cassul will do much more. I'd say save yourself some money, get a better revolver and a better round by looking into a linebaugh, something like a .475 or .500. KNock the socks off of the .45-70, and the custom linebaughs are a lot better made in my opinion.
Screw the 10 ring, keep them in the zero!!!