A 44 mag with 240gr. or 278gr. Keith style hard casts will do the trick, or if you dont hand load you can get 340gr lead long FN Buffalo Bore 44 mag. +P+ they shoot a 340gr. hard cast at 1478fps, and will take down anything that you could possibly run in to in North America, but they are too powerful to shoot in a Smith & Wesson, they are only rated for, Ruger Super Redhawk, Super Blackhawk, Freedom Arms M.83, and Dan Wesson. They are totally legal and will deffinitely do the job.