I have a question for the bear hunters here. This one is not about what is the best firearm for defense from bears, but rather how the practical aspects of attempting to kill a bear would vary with the type of weapon. For instance, I have read that it's better to try to shoot an attacking bear in the shoulder or hip joint, crippling them and stopping their speed of attack before trying for a kill shot. Okay, this might work with a high power rifle, but with, say, a .44 magnum? I wouldn't think it had enough power. How about a .30-30? I've also read that with a handgun a shot must penetrate the brain or the spinal column. How thick is a bear's skull? Where would you aim? With a shotgun, which would be best, slugs or something like 00 buckshot? Once more, where is the best aiming point -- joint, skull, heart? Now, mostly I am talking about grizzly or brown bears, but if this differs with black bears, how?