try looking into a 338 lapua. its a little big for whitetail, but is a good long range with enough knock down for elk, kodiak or really anything that walks the north american continent, even humans if you so desire. the military in several countries, even the u.s. are using that caliber for sniper rifles. its not just the caliber, but also the maker that will make or brake the long range ability. do your research on manufacuters too.
A .338 Lupau as an all round caliber? Is this guy hunting multiple species in Jurassic Park? lol
Id love to own one though!
its my next caliber of rifle to buy. im thinking of accuracy international for the manufactuer, but also thinking of a thor tactical group too.