RE: What Caliber would you pick for deer/elk/moose???
Any of these will do it all: 270win/280rem/30-06/338federal/35whelen/350rem.
Top pick for all is the 35whelen. Pretty much matches the 180gr 06 trajectory, but with 250gr bullets.
Top pick leaning towards deer and distance 270/280.
And the 30-06 is right smack dead center.
Its where and at what distances you will be hunting the 338fed will make a lighter fast handling rifle if most shots will be under 200 yards. If not pick one of the others. Elk seem to be tougher than moose and the 270win dose them in all the time.