Thank the Government for this also: Government Surplus Auctions at Government Liquidation
Last year me and a couple of buddies bought 600 - 50 cal ammo cans for less than $2000.00. We each kept 100 and sold the rest. The point I'm making is that this is the website that almost ALL surplus goes through now. It's set up like an ebay auction, and you can buy anything from canteen cups to ocean-going ships. The only catch on ammo related things, is you have to get what they call an EUC.....that stands for End Use Certificate.....it's free, but takes a couple weeks to get. Basicly, you have to sign a paper saying you are a U.S. citizen, and you won't sell your stuff to the bad guys (they have a list of who they don't want you to sell to). They sell brass by lots weighing from a thousand pounds to lots weighing several tons. There are locations all over the country so you can look at stuff near you or go as far as you want.