For over 40 years, I have hunted and shot moose, elk, and bear, as well as deer and a variety of other animals, in Montana and Oregon (no moose in Oregon, of course), shooting a variety of calibers through the years, including the good old .30-06, even using 220 grain bullets for elk/moose, and I learned a lot. Trust me, a .30-06 is inadequate for good clean kills on big elk/moose, while a 9.3x74r is vastly superior---quicker, cleaner kills. .416 Rigby is even better, as is the .450 nitro! My Dad loved the .30-06, being a WWII marine corp vet. He taught me that one can buy .30-06 ammo in every corner of the country, and that it is a wonderful caliber for deer sized animals, and it is, but not for large animals, based on my experiences!