I recently purchased a new Pedersoli Sharps "Quigley model" in 45/70 caliber which I will be using primarily with black powder. I would like to occasionally reload using smokeless powder. The Hornady Handbook of Cartridge Reloading which I am using states 3 different loading levels for the 45/70: Trapdoor, Marlin 1895 and Ruger # 1. Where does the Sharps falling block action stand in terms of strength? Should I stick with the Trapdoor loading levels or will this gun handle the Marlin loading levels? Any information would be greatly appreciated.