Polymer Tip The sleek polymer tip increases the ballistic coefficient, making it more efficient. Upon impact, the tip also initiates controlled expansion. Secant Ogive, Boattail Profile It’s a fact: bullets that travel faster hit harder. The Hornady® secant ogive gives hunters the speed, ballistic efficiency and downrange energy they’re looking for. Cannelure Provides accurate and consistent crimping, and also works with the InterLock® ring to control expansion. Interlock® Ring Ensures the core and jacket remain locked solid during expansion, so the SST® retains the mass and energy needed for dramatic wound channels.