Even with these eyes I can shoot 3-400 yards lights out. But the 367 or the 45-70 will do that but the 45-70 will stop a elephant at that range. The 357 - not so much.
Accurately with a 45-70? I would almost pay to see that.
Ahhh, didn’t realize you were in Africa, I’d certainly go with a big bore weapon then.
Ed Matunas says the 45-70, .405 grain is fit for light big game out to about 125 yards. Trajectory makes it iffy for 3-400. Freeper elkfersupper told of long range shots with it, though. I don’t know what kind of terrain of vegetation you are dealing with.