What does it take to kill a grizzly?

[Luke S]

I was there for 2 grizzly kills this spring. A 223 with 77 TMKs worked and the bear died fast enough. The hole was smaller. A 308 with 178 gr ELDX bullets killed a slightly smaller grizzly in a similar time frame. But there was an exit wound and a bigger hole. Take from that what you will. I'll going to check a bait one last time this weekend before I clean it up. Might see if I can try a 88 gr TMK