Moose cartridge?

[Little Dutch]

I hunt elk, deer, and pronghorn with a .308 Rem. I'm honestly wondering if I should take something else on my moose hunt in unit 49 this year. Bull tags are rare enough to pull I'd consider a longer shot to fill my tag.

I'm certainly capable of accurate shooting with my .300 win mag, practicing out to 600 yards (farther than I'd likely be comfortable shooting an animal, for the record). My .300 is entirely too heavy to carry through a hunt, but I'm also always looking for a reason to buy another rifle.

For anyone who has taken moose or done some pondering on the question, which cartridge would you use?

To clarify, I don't want to not take a moose because 350 to 400 is farther than I'm comfortable with using my .308.