My 2 cents worth, I've never been to Africa and with the world the way it is I doubt I will, so all my knowledge is purely theoretical. Someone mentioned a No. 1 in 45/70, it's my understanding that in a suitably strong action such as a No. 1 the 45/70 can be handloaded to match low end .458 levels. Other than the 1 shot handicap why wouldn't that be acceptable for Buff?