I use a Lee Carbide Speed die set, for both my .357 magnum and .44 magnum reloading. I use them with the Lee Hand Press. I find these very effective. Since getting the Speed loader, my three die Lee Carbide sets, for my .357 magnum and .44 magnum reloading, sit idle. I recommend the Speed die sets, in .357 magnum, and .44 magnum, for use with the Lee Hand Loader.