I do not think they sell the Hornady SST in bulk anywhere. They are too much of a money maker for the company. You can buy them with their included sabots or you can buy them under the name of Thompson Center Shockwave with their included sabots.

If you want a bulk type bullet similar in design, then look into the Precision Rifle, Dead Center bullet or the QT bullet. They are sold at http://www.prbullet.com/ or you can buy them through places like Cabela's. I think you would be real happy with the Dead Center line of projectiles as well as the SST's although they might be a little more expensive.