I just made my twice monthly trip to the feed store. Four 50# bags of allway kernels (flockraiser), one 50# bag of black rooster (scratch grains) and two 10# bags of oyster shell. Total $74. I explained to the clerk that I will no longer buy their 50# bags of oyster shell because it is mostly powder. She said she would have her husband (the store owner) look into it. Hoping this feed will last me most of the month. I'm feeing 30+ chickens.