I took my Moose back in 1995 with a Ruger M77 6.5mmSwede and Norma 156gr "Alaska" ammo.

Have killed Elk with .270 150gr NP.

You don't need 7mm mag for deer unless you're shooting them at 400 or 450 yds. You'll do just fine with .260 or 7mm-08 for deer if you don't like re-coil.