I live in Alaska and the "universal" gun north of the Arctic circle is the Ruger Mini-14.
I know ten people are going to jump in and state what a horrible rifle it is and that the .223 is too small, but it's true nonetheless. Alaska Natives (no, they're not all Inuit!) strap these on the back of their snow machine and cruise around in unbelievably low temps and plug caribou, moose and whatever with complete satisfaction.
Pop in a soft point for meat critters and ventilate the rib cage and then a FMJ for fur critters and you're well on your way to a subsistence lifestyle.
You only need minute-of-wolverine accuracy after all, and these rifles WILL function at these temps - something you can't say about a lot of other rifles.
I think the most important reason for the popularity among the natives is the versatility. These guys are subsistence hunters and they don't care if a moose doesn't drop on the spot. They'll pop a couple rounds through the ribs and then follow him until he drops - no sentimentality involved here. And of course a .223 with an FMJ is good for wolves, fox and other furbearers without tearing up the hide (money!), as well being accurate enough to head-shoot sitting rabbits, ducks and whatever.
I don't think you can argue with success.