I have hunted with both the 300 grain and the 380 grain REAL that I cast. I have a friend that has a .54 T/C Hawken Rifle and the 300 grain over 70 grains of Pyrodex RS is all he deer hunts with. He's shot some nice deer with it. I usually shoot 65 grains of Pyrodex or Black powder, a wad. and then a 380 grain REAL. I have shot several deer with them. It is a deer killer. Since I cast them, it is easy to get them.