The rule of thumb I've always heard is if it is packaged correctly it will be good for a year, I've only got a few packages of steak left and they will be a year old next month.
Congrats! That will fill the freezer! Right now here in MO we are in bow season and with harvest season in full swing the deer are a little spooked, still a little warm as well, better luck will be had next month when it starts to get cold!