Im going to be trying the same thing w/ my new AR-15 this gun season. I dont have enough confidence in it though, to use it on opening day, where I would want a greater range of shot opportunities, at a potential big buck or bear, but I think it should do fine at short range broadside shots on does. Im using 55 gr hornadys. they go through 2x3s so they should hold up if they hit a rib. Good luck.