Short for "Super Shock Tip" the Hornady SST is designed to deliver tremendous shock on impact while expanding quickly and reliably, particularly at higher velocities. Flat shooting and deadly accurate, it's an ideal bullet for whitetails, as well as most North American game animals from antelope to moose and similar-sized African plains game. The SST creates a devastatingly large wound channel.Polymer tip the sleek polymer tip increases the ballistic coefficient, making it more efficientUpon impact, the tip also initiates controlled expansionSecant ogive, boattail profile It's a fact - bullets that travel faster hit harderThe Hornady secant ogive gives hunters the speed, ballistic efficiency and downrange energy they're looking forCannelure - provides accurate and consistent crimping, and also works with the InterLock ring to control expansionInterlock ring ensures the core and jacket remain locked solid during expansion, so the SST retains the mass and energy needed for dramatic wound channels