700X, check with AJ Supplies AKA Roger and AJ Brenner. I have bought some from him in the past at the Cardinal Center. You could send him a PM here on ts.com his user name is roger brenner. Always fair prices!!
Some of the kids on the grounds pick up hulls and sell them for about $20/clay box. That's about the right price. Ask around the traps & keep your eyes sharp.
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