From the AP story:
The grizzly took Jerry Ruth by surprise, bursting from thick brush and biting his jaw almost completely off. On the ground and barely able to see, Ruth grabbed his .41 Magnum-caliber revolver and started shooting. The third bullet pierced the bear’s heart and spinal cord, killing it from 25 feet. “I’m glad I was armed with a firearm and I’m glad I was able to shoot straight,” said Ruth, attacked last July 19 a couple miles from his home not far from Yellowstone National Park. Ruth’s gun quite possibly saved his life. It also provided fodder for a long-standing debate about whether a gun or bear spray is better in fending off a grizzly attack.
__And if that sounds like an esoteric discussion, it has intensified with a new federal law allowing people to carry guns in national parks. The advent of the new law focused not on bears but on Second Amendment rights. Even so, three national parks — Glacier, Yellowstone and Grand Teton — are waiting to see what will happen once hikers and campers begin venturing into the backcountry in the weeks ahead. “Experience shows that putting firearms and grizzly bears in the same place ends up with dead grizzly bears,” said Steve Cain, senior biologist for Grand Teton National Park. “Time will tell. Of course there is the potential for unintended consequences — injury to bears, injury to people,” said Glacier spokeswoman Amy Vanderbilt._