Regarding the 375--
It is not neccesarily a good Ele charge stopper as stated above. Stats from Zim showed most PH's shooting the 375 died when surprised by Ele in the jesse, while more shooting the 470 NE lived. It is obvious the 375 is not a good Ele stopper as the 470 NE. I think the 45-70 is in the same catagory but would hate to see some one killed trying to stop an Ele charge to prove it. Charging Ele shot with different stopping rounds over the last 100 years prove whats needed beyond question.

The Linebaugh tests were performed involving a modified water medium which gives non reproducible results.There is no free lunch, free energy or magical penetration by pistol bullets. Bullet energy and focal vectors of momentum can't defy the laws of physics for either pistol or rifle rounds.

If you really think the 45-70 is ok for DG but not a stopper I would then ask why do you hunt with a gun that cannot stop a charge? Do you have physical limitations that make the 45-70 desirable vs other calibers??If you are undergunned you may increase the misery and suffering of the animal. Are you planning on the PH to get you out of trouble? Sometimes that doesn't work out.

If you like the 45-70 and want to hunt Dangerous Game with it--go for it. If you don't get charged you may do just fine.I certainly hope I don't read your obituary. The folks here have alot of insight into what works and have advise worth listening to. Take heed.

Someone once said "Use enough gun!"--Good Advise