These have been used in old Winchesters:
33WCF-1886
338-06
35 Whelen
348
348-AI
450 Alaskan
Last bull moose killed in the AK interior with a Winchester M-71 348 Ackley. (Parker Ackley liked this cartridge-it delivered) Using a 270 gr Hawk FP bullet;
In many parts of Alaska-Canada, bears including grizzly show up around the area of the innard pile. A fast handling heavy lever action is becoming popular with guides.
Rifles and cartridges are like wives and girl friends: personal choices that you will live with. Early pre-64 Model 70s and pre-war Model 71s are controlled round
reliable.
E. Keith was right: 338 and above. Bears only become dangerous when they are close: hence dangerous game rifle. Like a 450 or 50 Alaskan if you know
something large has taken over or buried part of your moose not packed immediately back.