My BIL has a Pietta New Army 45LC he would like to use deer hunting. I don't think it would be safe to use Buffalo Bore 325 gr @ 1,325 fps (but correct me if I'm wrong). The other ammo option he mentioned is 250 gr @ 900 fps which he knows is safe in the handgun. Would that be likely to work on deer? Not sure what the bullet is (I'll ask him), but what bullet spec would you want at that velocity?