You do know that there are few places you can still hunt grizzly's, but you better have deep pockets.($40K)
I quit carrying a 270 because 7 grizzly moved into my neighbourhood. Now I have a 300 win mag. Browning Bar Safari semi auto.
1 round, maybe if there are 2 others with a 460 Weatherby bolt action standing beside me. Any other scenario and life in gods hands come to mind.