This issue comes up all the time. You have to stay aware at all times when walking through grizzly bear country. Avoid places where the vegetation or terrain make for tight quarters. Be careful with your food and meat storage. Use your nose and don't stumble onto bear kills or stripped animal carcasses. If at all possible, travel or hunt in grizzly country with a buddy. While hunting, if you take an animal, try to drag it out into the open to field dress it. If I see grizzly cubs or grizzly cub tracks, I vacate the area ASAP. Many times a grizzly bear will bluff charge. I had a grizzly do this to me a few years ago and I did have enought time to aim my rifle at him. Two grizzly bears got close during the 2010 hunting season and I was able to have my rifle ready if the bear decided to charge. Each time, the bear backed off without incident. I have been told by experts if the grizzly bear appears to be yawning(I'm not kidding)you are about to be actually attacked and it is no bluff. In my opinion, if you don't think you can hit a grizzly bear with a firearm you might not want to walk into grizzly bear country. When I am hiking, but not hunting in grizzly country, I pack a Ruger Redhawk .41 Mag on my chest in a Ringler Wyoming Combination Holster. I practice pulling it from the holster. I also have bear spray. The bear spray is fine if it is functioning(test and replace it often)and the wind isn't blowing hard. Don't be stupid and put it in your backpack. It shoots a stream and not a mist. You will have to aim it for the bear's face. The bear has to be really close for pepper spray to be effective. I know a couple of people that have been mauled by grizzly bears. They both killed the bears(sows)just after being mauled or actually during the course of the mauling. The shooting of the bears was incredibly close. If you are attacked, you need to know how to cover your vitals and protect yourself. It can all happen in seconds. My feeling is don't go into grizzly bear country if you are not going to pay attention. Also, despite all the precautions you take, you can still be attacked.