Buck Bourbon Barrel Proof is our highly attractive supplemental deer feed. Barrel Proof was designed with either cinnamon and garlic or apple butterscotch flavoring to make it more attractive to deer. Barrel Proof is proven to work and has been tested at Salt River Outfitter on free range wild deer. If you want to supplement your deer and see those antlers grow; feed them Barrel Proof. Barrel Proof comes in a 40 lb. bag. Feed Buck Bourbon responsibly.