I am making a trip to Alaska this year to a very hot bear area but will not be hunting bear. I am bringing a newcomer to Alaska this year with me and he has gun selection concerns. Understanding all situations are different, but what is the overall concensus on what caliber might be sufficient to stop a bear. I know this question has been debated over and over again, I am sure. The calibers in question are 45 auto vs 44 magnum. Thanks for any input you all might have.