What you want is a Hardcast flat nosed bullet with a .280 to .350 meplat. My personal favorite in my Marlin Cowboy 45-70 is a 480 grain bullet out of a Lyman 457121PH mold over 38.5 grains of 3031. Low recoil and cycles through the Marlin like it is greased. It will shoot through and through any bear in Alaska from any angle. I have taken buffalo, elk, wildebeast, zebra and a lot of smaller animals with this bullet out of a 45-70 and have yet to recover a bullet. This bullet is a stone cold , accurate killer at the 1350 fps velocity of this load. As my PH in South Africa said, that load "kills them DEAD!"
Sounds like a performer.
