Hi

I live in grizzly country and can tell you first hand that there is nothing slow about a grizzly bear. It can cover the ground and be on you before you even get the rifle off your shoulder. They will avoid humans whenever possible but if they are threatened they are very dangerous! Don' t hope for multiple shots just make the first one count! I carry a .450 Marlin when hiking and fishing the back country in BC just in case! I will be carrying a .338 for my spring bear hunt! If I was to go on a caribou/grizzly bear hunt and could only take one gun I would have to say it would be my .338. Grizzlies are big,fast,and strong don' t gamble with your life leave the .270 for the lighter stuff and use the .350 Remington for the big bears!

Good hunting