After 27 years of use and a lot of testing I remain unconvinced of any superior penetrating ability of the .416 ( 400 gr bullet @ 2350fps) over the 458 ( 500gr bullet @ 2150fps) A little - maybe, sometimes if you are using stout solids - but not enough to make me choose one over the other.

Phil Shoemaker
Alaska Master Guide,
Alaska Hunter Ed Instructor
FAA Master pilot
www.grizzlyskinsofalaska.com

Anyone who claims the 30-06 is not effective has either not used one, or else is unwittingly commenting on their marksmanship.