If This Was in New York, the Guy Would be Dead.

Alaska man kills charging bear with assault rifle

Department of Fish and Game wildlife biologist Jessy Coltrane tells the Anchorage Daily News that an unidentified man came across the bear Sunday morning while hiking alone. He told Coltrane the bear charged him, and he fired 13 rounds from an AK-74 assault [my edit] rifle he was carrying on his hike

It's not exactly a bear rifle, but it did the job.