Rob, congrants on the move! I hope you enjoy it up here. Where abouts are you going to reside?

I have personally used a 30-06 on moose, and seen several taken with it resulting in one shot kills. The 300 should do just fine on everything in Alaska, but that is considered usually the minimum caliber from big brownies in south east. It will be adequate for interior grizzlies. I picked up 200 grain bullets for my 300 win mag, but have yet to chase anything with it, just practiced some at the range with it, and the 200 grains seemed to group better at 200 yards than the 180's. I haven't been in the gun seen for a while though, but I know enough for a basic answer at least.

The 7mm you have will be adequate for moose as well, many Alaskans use them regularly on them.
ArcticBowMan's Hunting Photo's