Wolf killer-the .45-70 can be safely loaded to .450 marlin pressure level in newer marlin lever rifles such as the newer 1895s. I remember asking the marlin rep at the NRA great outdoor festival the reason for the .450 Marlin when we've been loading the later 1895s to the same pressure & velocity levels for years and he replied it's for people who want that velocity/pressure level but don't reload.