Very interesting.
One little thing he mentioned was about wounded bear. He said he'd never use bear spray going after a wounded bear in the brush. Plus,, he also discussed the reactions of a wounded bear. Saying; "A wounded bear is fighting for it's life."
Both very true statements.
But he shot the bear 5 times with his .9mm. So, in essence,, he engaged a wounded bear 4 times. In his follow up skinning, he found his bullets had penetrated the vitals, and would have eventually killed the bear most likely. His 5th shot was as the bear was retreating. He fired 4 shots into a bear standing over his clients. Now,, he did NOT know where his clients were located. But it's just as likely the bear could have felt his being wounded, and perceived the clients as the "threat" and attacked them in his fight for his life.
My point in bringing this up, is to allow us as humans to think about the simple fact that animals,,,,, ALL of them,,,,, can react in different ways at different times, and under different circumstances.
Yes,, his 9mm with those Buffalo Bore loaded ammo,,, did a heck of a job. And yes,, you have to be able to hit your target for any ammo to do it's job. But I'd still not rely upon a .9mm in an area where a lot of bears are, and especially knowing the potential for a serious encounter could happen.
I still feel as an overview,, he was complacent on his approach to bears because he'd been around them for so much that he had the mindset; "It'll never happen to me."
Prepared for the worst & hope for the best,, everytime & always.