I remember reading a magazine article posted by a renowned writer that was reading from a diary he found that was recording calibers used in a bear camp and the majority was .300 win mag. I have a good friend that was a bear guide on the Alaskan Peninsula that hunters were paying twenty thousand dollars to hunt. His opinion was the guys would buy rifles of big calibers that they'd never shot come to camp and be afraid of there gun, hed of rather they came with a 06 that they new how to shoot.
