In the .30-06, PMC offers the Barnes X in 165 grain and 180 grain weights. I have used the 165 grain Barnes X on 200 pound hogs and the bullets penetrated. As such, you should use the 165 Xs with no problems on black bears, or, if you want more penetrating power, you could use the 180 Xs. In my rifle, they shoot sub 1" groups at 100 yards. :grin:
You won't find a hunting expanding bullet that retains more weight or penetrates deeper than a Barnes X. :wink:
Zachary