Bears move fast and have to be anchored. I have shot bull elk with an original 1895 in.405 WCF. Its a good cartridge and many bears have been killed with it. I also have a few Model 71s, including a 348 Ack Imp which will handle a 270 gr Hawk bullet. And a 450 AK on a pre-war Deluxe Model 71. But for coastal big brownies, its a early M-70 in 338WM-375 H&H . Backed up by a 450 Alaskan. Always a good idea to bring two rifles on a guided hunt up here.
If your rifle goes south-where is the closest gunsmith? Another heavy rifle is the answer. If you are fishing and an irritated brownie shows up in the alders and its getting late on the trail, I would prefer a 450 AK with 400 gr bullets and fast reloading of a smooth Winchester M-71 any day. Maybe even a 50-100-450 1886 Winchester if he squares over 10 ft. and is all teeth and claws- & mad.
Bolt actions are SLOW for repeat shots compared to a slick Winchester or Marlin lever action rifle.
"The credit belongs to the man who is actually in the arena-not the critic"-T. Roosevelt There are no atheists in fox holes or in the open doors of a para's aircraft.....