Thank you Mule Deer for resurrecting that part of my original question; being attacked by a bear. If i'm going after a grizzly on purpose i'm likely using my 9.3x62 though I could be persuaded to use a 6.5 with a properly constructed bullet and conditions more akin to my liking. But, when suddenly confronted by a big bear I want a bullet that is going deep and breaking stuff as it goes through.

Alan