If they are all once fired brass from your gun (the same gun) then look at the prices on once fired brass at your local reloading shops, E-Bay and any place you can think of. Average the prices and sell at the average price. You could sell them here or give them away to a "needy" reloader. You might be able to trade them for brass that you can use. There are a lot of options out there - choose one and go for it.