When Hornady engineers set out to design a bullet that combined deadly terminal performance with a high ballistic coefficient, they found the answer to both in the SST design. They started with the proven design of our InterLock bullet, and added a sharp, pointed tip to cut through the air for faster, flatter shooting. They combined a one-piece core and strengthened the jacket in critical areas to make a bullet that delivers controlled expansion, superior weight retention, and massive shock for a clean, quick kill.