OP, have you considered looking at a couple of the banner advertisers at the top of the page???
A few of them would be open to large orders. Say you get a few people together and purchase anywhere from 1000 to 10,000+ rounds from them in one batch.
I don't know what your financial position is and don't particularly care. One thing to remember when purchasing ammo, the more you buy at one time, the cheaper it gets.
Most dealers worth their salt will discount large bulk orders because it cuts down on paperwork and handling time as well as making a big dent in their bottom lines. If you can rotate your stock very quickly, that means you can buy more at lower prices and increase profits.