I would use what I already own , either my Kimber in .325 WSM or the BLR in .358 Winchester . Either one with the right load I would feel comfortable with as I shoot both very well . I have never hunted Alaska or big bears either one but I would think the two absolute most important things to concentrate on for success on such a hunt would be , know where to hit the bear and make sure your first bullet goes there and Don't Piss Off Your Guide .
Grumpy old man with a gun.....Do not touch . Better to be judged by 12 than carried by 6. Don't bother my monument and I'll leave yours alone.
