Originally Posted by Too Tall Rosenwald
It is not a necked down 45-70. Different size case.
Correct. It is a different case entirely, much stronger. I also have an Encore in this cartridge but mine was a .44 Magnum reamed to .444 Marlin by David White at D & T Custom Gunworks. D&T Custom Gunworks Forum
It is quite a handful in a pistol. Mine likes the Hornaday LeverEvoloution 265 grain ammo in factory form. Check out HAWK bullets for reloading, the 300 grains x .025 HP will nearly tear a whitetail in half. Be prepared for a little meat loss, tracking is nearly nil. Farthest I've had to track one is only the distance from where is was standing to where it hit the ground after it was knocked off it's feet.
Some of the other HAWK offerings might be a little less destructive.