Our club is in Coosa County and we feed only high protein feed during the summer.
There are a lot of brands out there I know. We have used 20% Protein Rack Rack Deer feed for several year along with 18% Protein Feed in a bag from Academy Sports.

All of this is very high in cost this year. I went to a feed mill south of Montgomery and bought a 20% protein feed that has all the minerals and other ingredients of the high cost products that they mix there and the deer seem to lover it. It comes in 50 lb bags like Record Rack and some of our 23 feeders were empty after only two weeks with this item. Other mills make have a like product. The important thing in the summer if you are going to fill up feeders is do it with good protein feed. Corn is much cheaper but is nothing compared to a good protein feed. We have several green fields planted in the summer also, with high protein seed like LabLab.