That’s a freaking BIG BEAR !!!!
And that window looks kinda small ?
read an article once said to shoot them in the shoulders...
the skull is so thick it takes the right shot
and their heart only pumps ~12 times a minute, so even wi no heart left, if he gets his mitts on you, well
but if they cant run on all fours, or grab you, you have a better chance of getting away
YMMV...