Looking for some guidance on choice of .45 LC ammo for my new Uberti 1873 Cattleman. I do not currently load my own and will start out with factory loads. I know most (if not all) of the "cowboy loads" are a good choice for plinking, but I am looking for the hottest factory cartridge that can be SAFELY shot in this gun and would be good choice for hunting / self defense. I have asked Uberti for the design limits on max pressures, etc.........no response. Help?