I had one of the Navy Arms (Pedersoli) RB's back in college - a .45-70. IIRC it had the 30" heavy barrel. I found a tang sight and front globe for it. I didn't really know what I was doing at the time, but had good eyesight. Shooting smokeless & jacketed bullets, I put 3 in 1 1/8" at 100 yards. Eventually I got bored with it, and sent it down the road.
Recently I saw Wtxj's swedish roller in .45-120. Dunno about the cartridge, but the finish and workmanship was very nice.
