If you don't shoot the same bear in the same places with the "heavier" bullets then it is speculation. I would want bear spray because it sprays a field and probable results would be better. FYI I don't care if the bear survives or not. Also the effectiveness of the spray on the Kelly bear is speculative too. I didn't talk to the son I talked to the man.
Seems he left a lot out of the story - you know, vital stuff like the performance of his bullets. Yet, no one thought to ask him about that? I would think that is the first question, like why a .375 H&H and a .44 Mag at point blank range didn?t produce a more definitive result. Call me crazy.