Yeah an dif you REALLY want to impress a buffalo, try at 416 Weatherby like Layne Simpson says. That 400gr2700 really gets their attention! As to the 458, no doubt a proven and impressive killer, but it's almost like a double in that it is a specialized caliber for closer in work. There's just no getting away from the fact the 416 "Rs" are a great caliber and a lot more versatile. jorge
Last edited by jorgeI; 12/24/10.
A good principle to guide me through life: “This is all I have come to expect, standard lackluster performance. Trust nothing, believe no one and realize it will only get worse…”
2700 really gets their attention! 
As to the 458, no doubt a proven and impressive killer, but it's almost like a double in that it is a specialized caliber for closer in work. There's just no getting away from the fact the 416 "Rs" are a great caliber and a lot more versatile. jorge