Prezactly! Thank God, Sharpsguy was the voice of reason saying that the standard 45/70 would do anything that needed doing.
Basically, I will be shooting Whitetails, maybe black bear if all goes well and pigs with this rifle. Surely the 45/70 will handle it.
If I were running up against real buffler or African game, I'd look harder at the -90 or -110.