I'd say your setup is plenty if shots are kept close, I would go with the heaviest arrows that will tune in your bow, and a stout 2 blade single bevel broadhead. I took a grizzly a couple weeks ago with a 60# recurve, 750 grain (total weight) Easton FMJ arrows, and a Grizzly broadhead. 14 yard shot, broadside with the far leg back. Complete penetration, both lungs, came out through the front of the far leg, and he only went 40 yards. Green scored 25 7/16", squared 8'9"