After looking at those two threads relating to brown bears and stopping power, I think I have the ultimate Grizz Killer. It my new .967 RemPua Ultra Super AI. It shoots a 1800 Grain TSX bullets with Nitro Glycerin Tips and C-4 in the Core. Shoots one hole groups....of course the hole is 47 feet, but hey. Best part is I can load down for whitetail and you should see this thing on p-dogs!