I think you are on the light side. I do deer hunt Eastern Whitetails with a 357- but this is what I use-
click pic to enlarge
I use the heaviest hard cast solid I can handload over a case of 2400 powder.
And I agree Freefall- range you can hold all your shots in a 5 inch circle. That 10 inch revolver will do it at 100 yards IF I have a shooting stick- but not pure standing offhand.