New moose rifle
I have a 35 Whelen that I have used to take both Moose and Elk with a 225 grain Nosler partition. The purist's will never launch anything less than a 250 grain slug out of their Whelen, which it was originally designed to do.
You will find that 06 case has a tendency to perform much better with the .338 and .358 caliber bullets then it does with the old reliable .308. Anyone I know that has spent some time on the 338-06 and the .35 Whelen have pretty much parted ways with their 30-06.
I find the 200 grain Hornady or the 220 grain Speer will flat out smack a deer down out to 300 yards without issue with quality handloads.
Enjoy your 338 - 06 I believe you will be impressed not only with its inherent accuracy but the affect on large game is amazing. You become a believer in big fat bullets very quickly.
Never seen anything walk away from a big old lumbering 45-70. squarely hit. So you get the idea.
Shoot straight and shoot often GF
I always wanted to go moose hunting and figured that my old Marlin 1895 chambered in .45/70 would do the job.
Formerly Steve @ G & S