The Alaska Bulletworks 450 grain FMJ Kodiak at 2150 fps worked well for us on Cape Buffalo in Africa and should work well on large bears.
They did shoot through some buff, so be sure of what is behind your bear before firing.
CRS, NRA Benefactor Life Member, Whittington Center, TSRA, DWWC, DRSS
Android Reloading Ballistics App at
http://www.xplat.net/
