I shoot 70 grains of 3Fg, and prime with the same size powder. .530 round ball patched with .015 ticking, lubed on the side of the patch that contacts the barrel. I also use a thin, silver bladed front sight to get the most out of the accuracy. Farthest that I've shot has been 110 yards, on a very large doe that I thought was closer. Ball went through and through broadside.
I came up with the load as Maryland requires muzzleloader long guns used for deer to shoot a minimum of 60 grains of BP or BP substitute. I went to 70 on the off chance that some youngster game warden might have a wild hair up his arse, and COâ‚‚ discharge my load, so I wanted a bit more so there wouldn't be any question....it shot very well so I kept the load.
I only carry one horn out of simplicity for loading on the field or range.
LD