I would choose the rifle I'm most comfortable with and shoot the best.
338 Win Mag 225 grain or more is more than enough gun for any Elk. I've taken a couple with mine. Pretty impressive.
That being said, I'm a 30-06 guy.
Countless animals have fallen to my Model 72 Mannlicher Schonauer 30-06 with 180 grain Barnes Vortex and it has made a believer out of me and a number of my buddies. (The only friends that haven't followed suit, are the guys that think they need Creedmoors and short Mags. Hog Wash I say!)
Black Bear, Caribou, Lion, Eland, Kudu, Wildebeast, Whitetail, Mule Deer, Elk, etc.......A pleasure to shoot, a pleasure to carry, and a treat to look at!
Life is far too short to shoot an ugly gun!
Just the opinion of an opinionated old man!

Last edited by 06hunter59; 01/16/20.