Hey Fella's, I'm in need of a powder measure. I'm new to BP, so please excuse the idiocy. I'll be shooting Triple Seven out of an old TC Renegade 54 caliber percussion rifle. I plan to shoot both ball and sabots, on advice of previous owner. He says rifle's shooting 1" groups with 777 and sabots at 50yds. Why ruin a good thing! What powder measure to buy for this combo rifle, powder? I'm certainly going to try black powder, pyrodex, and others. Any help would be great, Thanks