GTB, I have a free choice feeder that has a square tube coming from the bottom of a 60 gallon drum and opens into four seperate smaller openings. We feed a 50/50 mix of protein and corn. The drum holds 6 bags (300#) and we have to fill it up every two weeks. Keep in mind that not only deer eat corn. Birds of all types, raccoons, mice, turkeys, squirrels, hogs, etc... I even had a coyote that came into my feeder almost every afternoon last year and ate the protein. 50# in a week is a good sign but I am not surprised it did not last longer. Just my opinion. Allen