jeff,they killed all kinds of animals for years with cast bullets.They even used BLACKPOWDER with them.
They work quite well really! 180-200 grain bullets in your 357 max should reach 1400-1500 fps.Powder selection is about the same as with jacketed bullets.You can buy or cast your own A friend has a 14"contender that loves a 358429 bullet he casts.It weighs about 170 grains and goes 1750 fps+- on top of Blue dot powder.He has taken several whitetails using this load.Please do not ask what he lubes them with.He uses many different lubes,some home made some bought.