(New guy wanders in..)
I grew up in "Bush" Alaska, and watched my Dad and his buddies put moose on the table year after year with their "Good ol' Ought-6's". I expect there's not a moose born yet that could tell the difference between a .308 and a .3O-06. If you start wishing you'd brought a Weatherby- you're too **** far away! Have to agree about the "Hump shot"- I was 13 or 14 and it was my first moose- I had a Model 94 30-30 (my dad was next to me with his 'O6 ready) and it was about a hundred yard shot. Truth be told, I was aiming for heart and lungs, but being young and nervous I pulled it. And dropped him like a rock. Cut the spinal cord right in half- he never took a step. I would have never tried for that shot with iron sights, but was grateful for such a clean kill.
Enjoy your hunt, and your moose- I hardly tasted beef the whole time I was growing up.