Im so glad to see the thread not drift into the usual argument over whether a handgun vs bear is realistic etc....

I have had good luck with Leadheads 230g Keith, very nicely cast, hard, sharp edges, wide driving bands, massive meplat and shoot very
close to point of aim with very good accuracy out of my 657 Mtn gun.
Leadheads Bullets,Gas Checked and Plain Based Bullets
I load it over 18g of AA-9 WLP primer.
Good luck