When shipping ammo prices get high quick, usually the best way to solve the problem is to buy in bulk so that the cost is spread out, or go in with several people and do a large order that way. That said, I haven't ever bought ammo from Cheaper then Dirt because they have never had a deal that I thought was reasonable for what they were selling, generally 5-15%, sometimes more, higher then other places. What they do have though, is a better marketing and more publicity then other places and that is why they can get away with slightly higher prices on some of their items. But they aren't the highest out there, and if you can get them to ship quick and are happy with what you are buying, go for it. If they ship a firearm for $11 I would say that its a good price on shipping there.