For what it’s worth, the absolutely largest bodied bear any of my clients has taken was estimated to weigh between 1600-1800 pounds and was killed with a single 180 gr Partition from a 300 WM.
The shot was appx 60 yards and the bear ran 40-50 before dying .
The worlds record bear, skull size, was taken in 1952 with a 30-06
That's interesting on top of it all because the 180 is not a 300 win mag bullet. The 200 is. I"ve seen small whitetails stop the 180 partition from a 300 wtby.
Bottom line the bear is dead and I've yet to see the partition fail to kill a moose or bear but some have scary penetration.
Thanks for sharing!