Dubious gun recomendations - a 1911 and .30 carbine might work but are hardly the best firearms against brown bears.
It's pretty clear from the text that he's recommending the .30 as a game rifle.
Jim Cirillo said that a .30 M1 carbine shooting hollowpoints was the closest thing he had ever seen to a perfect 1-shot stopper for the 2-legged varmints.