The trouble with throwing bear protection is it is so rare. I am not a huge fan of killing bears. Never killed a polar bear or a grizzly coastal or interior. To be a show stopper on anything like that you need mass and a lot of energy. with a resting heart rate of 8 beats per minute a grizzly needs to be knocked down either CNS hit or massive skeletal damage or he will close your short distance and start chewing. The hole in the heart will only limit his chew time. A true close range show stopper on a big bear starts at .375. I just don't think .375 anything is the perfect all around North American Cartridge. Can we take Bears out of the conversation on the next one?