Brian,
I would choose the 8x57JR. Midway lists Norma ammo at $45-$50 and Sellier & Bellot at $25, if ammo price and availability is an issue then go with the 30/06. I'm a big fan of the 30/30, but I dont think I'd ever use one on a moose. Make no mistake, a 30/30 will kill a moose, usually after it runs several hundred yards and dies in the middle of a beaver pond.

Greg