Double Rifles for Big Pooh Bears

[KW]

Ok this question is for the truely experience Brown Bear Hunters. We have a family friend who agreed to let me use his Kodiak Express for a Brown Bear Hunt!!!! He used it in Africa and said this gun would pretty much drop anything. He said it shoots .72 cal rounds, 700+grains and around 1700 fps (had it chronographed not to exceed pressures) It has had black powder loads only in it and not the fancy british stuff. According to the Thornily (hope that is how it's spelled) scale it has enough power to easily take Pooh.  Questions are is this an accurate enough scale to base a decision on? Will a double rifle be to unweildy to hunt with? Lastly if murphy sneaks up and Pooh likes my skin as much as I like his will the second barrel have enough ummph to deter Pooh? Thanks.

[Dand]

I'm no bear hunter but I live in bear country.  I think double CARTRIDGE rifles have been used with good effect.  I believe I've read some hunting stories where they were used.  

BUT as far as a muzzle loader:  I have no doubt it has plenty of power. I would be most concerned about the weather conditions during the hunt. Bear season is often very rainy - day after day - especially in the coastal areas.  I would want to be confident the rifle would fire BOTH barrels when the time comes to pull the trigger.  I'd want a good guide with a cool head and big gun backing me up.  

You should consult the guide you plan to hunt with.

Otherwise it sounds like an exciting prospect.  
Maybe Dabigmoose will weigh in with his considerable experience.

Good luck. Practice reloading fast too.