308 enough for brown/polar bear?

[Turpentine21]

Yup,. I LOVE, my Beretta, semi Auto, Shotguns !!
I Have, 2 Beretta A-303's,. a 20 ga and a 12 Gauge !
Won, a Couple of, Live Pigeon and Sporting Clays, shoots with, the 12 Ga,.. "Back in the Day", when,.. Much Younger ( Mid 1980's ! )
They're Great for, Ducks and Chuckars, Too !
For Doubles Trap,. I shot, Krieghoff's and Perazzi O/U's and was averaging around, 95-96 Out of 100 at, "the Top of My Game"
I WAS, much sharper, precise / deadly and, Faster,. in my 20's ad 30's ( Obviously ) LOL !

At my wife's last count I think I have 10 Berettas from 390 to present. I don't know why she keeps bringing up the number of guns I have. I have a Citori cx with adjustable comb and Isis recoil system that has been rebuilt twice now. I simply can't find another O/U I shoot better than that one at clays or I would buy it. And I've shot all of them. It just fits.

 

[Navaluk]

1st: I think the 7.62x51 NATO or the slightly different civilian 308, is one of the worst choices for anything. But its better than nothing.
2nd: The Eskimos tend to use very small calibers for seals, caribou, muskox, bears, wolves etc. of any kind. They prefer .22 cal. (222, 22-250, 223 etc) My Guide told me that the 270 Winchester was his personal favorite for polar bear.
3rd: It is not an endorsement that troops used what they were issued. There choice was made by someone else. Nobody shoots a polar bear and thinks they are over-gunned.
4th: I used 375H&H for both and did not feel over powered. I would only use a 308 if I had nothing better.