I had a 7mm 140 grain Barnes TSX not open on a grizzly once. The tip got bent when it entered and it just bounced around in there like a FMJ. I recovered the bullet under the hide on the same side that it entered.
The bear still died, but it was a bit of a rodeo.
The first great thing is to find yourself and for that you need solitude and contemplation. I can tell you deliverance will not come from the rushing noisy centers of civilization. It will come from the lonely places. Fridtjof Nansen
