Believe me, if you got a big ole grizzly after you, you won't be worried about recoil or that big BANG. All you will be thinking about is not becoming that big ars critters next meal.I can understand about the difference in energy between the rounds. My boss keeps a .500 on his side whenever he goes elk hunting, for the same reasons. I have little experience with revolvers though, and the one thing that I remember from it all was the torque those guns put on my wrist. Didn't hurt, but it did take away any hope of a quick follow-up shot. Plus revolvers are heavy - not that I'm small or weak, but in a high-stress moment like that it's a lot of steel to be swinging around in the middle of the night.
The experience I've had with the. 40 has been quite good in my opinion, considering that it's supposed to be a snappy round. While still loud AF indoors, it won't be so much like a flashbang going off in front of me as a .44 or larger would be. Most importantly, I'm accurate with it. Should it occur, I'm already in the frame of mind to go for the head and shut off the signals to the body - a fatal hit elsewhere can result in that fatally wounded bear taking the shooter out with it. There are official reports of attacking grizzlies being dispatched with 9mm pistols as well. So while the .40 isn't the most powerful choice, it's powerful enough if the operator knows what to do.
We do have an "attack" dog... at least he thinks he is, anyway. He's half wiener dog and half terrier. A good alarm system if nothing more, and he's got some fight in him. Chances are we'd lose him to a bear due to his small size, but he'd buy us some time - sucks to have to look at it that way.
On a different note - where'd you get that dining set? My wife would LOVE to find a table and chairs in that finish!