SFRC once had a line on tons of pistol round styrofoam trays. When he asked here to gauge interest, the unanimous reply was,"Don't bother." They never showed up on his site, so I'm pretty sure he took our advice and saved his money. Nobody wants your old boxes, their shells came in boxes, and if they need something to hold their shells, MTM makes some VERY nice, fairly inexpensive cases that will last for years. Dump them in your recycle bin, and feel good that you just saved the planet.