I spent years cowboying/guiding in G bear country with a Winchester Mod. 95 carbine in 30-06 with 220 grain round nose bullets in my saddle scabbard. I know they are not Br. bears but I can tell you that this combo kills big bears dead. That being said if I was ever to go after big costal Grizzly/Brown bears on purpose I would want my 458 WM or at least my 325 WSM with me
