Powders with jacketed bullets, most anything between 4895 and 4064 work well. My favorite being the now extinct RL12, with second place going to Rl15.
i too prefer the defunct RL-12 in the 405. too bad it's gone and i'm down to my last pound. RL-15 is still very good and has good load density. IMR3031 and either 4895 also works well in my rifle. i personally think a 350gr. bullet is the ideal weight for a lever gun. i cast and 350gr. LBT LFN gc @.414" and run them 2150 fps.
