I built a Issac Berlin., in .69 cal. I bought the Pre-Revolution print available from a few sources, these would include Track of the Wolf, Muzzleloaders builders supply, and Tip Curtis. The barrel profile is what grabbed my attention. The 1-1/4" octagon breech is tapered to a wedding band transition, then the barrel transitions to a 5" 16 flat section to another wedding band, then round tapered to the muzzle. There is a check piece as well as a cheek carving that is very eye pleasing, There is a wooden patch box with more carving in that area, as well as on the wrist and forward of the check piece, and tang. It also has forestock moulding and butt moulding with a toe plate.
I didn't bench it ,but I am not a very good rest shooter, but am slightly better off hand. I tried just a patched round ball but got better results with wadding and a over card. Unfortunately I'm one of those guys that would like to take pictures as a show and tell, actually bringing the camera, but doesn't take any pictures. ... Thanks for listening (sort of) ...Geo.