I have a friend that says bullets cast using 25:1 and a 410655 mold come in at 410 grains, and that is all he uses with his 40-70 straight sharps. He has taken three elk with it, one that was at 350 yards and he got full penetration.
Fantastic news HTRN, in my humble and amateurish opinion, an elk is every bit a tough as a Bison, I've noticed a Bison is kinda built like a flounder, very large and expansive, but not to terrible thick across.
A Cape Buff on the other hand is built like a damn tank, THOSE sombucks are indeed very tough, thick and hardy.
