FWIW: EDC .40 180gr JHP HST and a bug 9mm 147gr JHP HST.
When I'm at our CO home, and since we get black bears in our yard weekly coming within a few feet of our walkout basement, and occasional mountain lion, for a variety of reasons, I feel a .44 Mag revolver in a chest holster is a solution for my situation. Thus, I bought an Alaskan .44 Mag and practice with 240gr JSP and carry 300gr JFN. Plan A is bear spray, Plan B is the Alaskan. Since I take my dogs out on leashes at night to do their thing, I have missed an encounter literally within seconds. So my bear encounters are quite high.
Data shows most people do not even realize they are by a bear until they are 14 feet from it, IF it is that close, you may get lucky and have only one shot. Thus, in my situation, I want the best odds of stopping the threat.
To be fair, the .44 Mag is not for everyone. I happen to enjoy shooting full loads with mine. Reasonably priced ammo for the .44 Mag can be found.
If you insist on using your 9mm, then absolutely buy the 147gr FMJ or the hard cast from Buffalo Bore. BTW, here is a link to Buffalo Bore's take on Black Bears
https://www.buffalobore.com/index.php?l=product_list&c=62#9.
Here is a link regarding handguns and bear attacks
https://www.ammoland.com/2020/03/up...r-attack-93-cases-97-effective/#axzz76POtOIIx. While both of the links give some form of support for a 9mm against black bear, I would strongly suggest against using a 9mm unless that is all you have. I would strongly suggest you buy a larger caliber
revolver.......
https://ring.com/share/e64d10ee-75e9-4579-afa3-d2bc91b34e7c