Here is over 15,000 pounds of 5.56mm brass for sale. It is stored in 55gal drums, 28 drums total (drums not included, so bring your own containers).
http://www.govliquidation.com/auction/view?auctionId=6023552&convertTo=USD
http://www.govliquidation.com/auction/view?auctionId=6023552&convertTo=USD