I believe this is common knowledge, but I thought I'd post it in case anyone wasn't aware of it...
pyramidair.com has a "buy 3 get 1 free" policy when it comes to pellets. Also, they have free shipping or orders over $150.
But there's a couple of caveats:
1) The "free" offer ALWAYS applies to the cheapest ones.... order 4 boxes of CPL at about $15 and one tin of Gamo Wadcutters at $3.50, the Gamo's will be free - NOT a box of CPL's
2) Some of their pellet prices aren't so good.
However, some judicious shopping can yield good results. A few months ago, I bought 16 boxes of CPL's at $14.65 ea; but 4 of the boxes were free... for a total of $175.80. Since it was over $150, shipping was also free.
That works out to about $2.20 per 250, or $17.58 for 2000. That's about what Midsouth gets for Gamo Hunters before shipping, and I'd suggest that the CPL is a superior pellet.