Found the bore to be .404. and a 1 in 22" twist. I didn't figure it would have a slow twist 1 in 40" like the originals. So , I have a couple bullet choices that ought to work. I have a 275 gr bullet that measures .405 and a 245 gr bullet that measures . 406 I figure one of these two will work, hopefully both. I'll be shooting black powder with the bullets cast 1 to 20. I hope I'll be able to get at least 55gr in the case.
This fast twist solves the problem as to where I'm going to find a 210 bullet!