I settled on 80 on grains of 209 with a 50 cal, 348 gr Powerbelt for elk. I'm sure 60 with that light a bullet will drop a deer with no problems if put in the right place.
I'd sure shoot it a hundred yards to see how much drop it has though.
I'm good out to 150 yards, I am set up for MPBR with the muzzle loader. I only mentioned the 50 yard groups because the OP was planning short range shots.
