A large male grizzly can take a .357 magnum to the head several times without any skull penetration (I know this because one of the wardens was mauled during a release and his .357 didn't do sh**)... So I have no choice but to give this fight, very easily, to a grizzly of the aforementioned size. They can run faster, they are 3 times the size, 6 inch claws... the Grizz wins.
1. Can you supply evidence that any grizzly has survived multiple shots from a .357 cal Magnum? I find that hard to believe, since the skull of a bear is only about twice as thick as that of a human and the brain behind it is equally fragile.
2. Grizzlies are not 3 times the size of gorillas; they are less than twice the size, and half their bodyweight is fat compared to the gorilla which has very little bodyfat. An average mountain gorilla at 450 lbs actually has the power advantage over the average 800 lbs bear.
3. Running fast doesen't mean shit unless if it is to run away from the fight, in which case the gorilla wins by default. Can a sprinter beat a pro MMA fighter in a fight? No, even though he can run faster.
4. A bear's claws would not cause any lethal damage to the gorilla unless it hit the carotide artery on the neck or poked the gorillas eyes out. Both are unlikely to happen in a fight. The gorillas canines and biting pressure, it's freakish arm strength and dexterous hands are more formidable weapons than the bear's paw swipes.
SUCKMYMUSCLE