1) Premium Polymer Tip The sharp point increases the SSTÆsÖ ballistic coefficient, making it faster and flatter shooting. On impact, the tip also initiates controlled expansion at all velocities. 2) Secant Ogive, Boattail Spire Point Profile ItÆs a simple fact: bullets that travel faster hit harder. The Hornady secant ogive, boattail spire point profile gives hunters the incredible speed and downrange energy theyÆre looking for. 3) The InterLockÖ Ring Ensures the core and jacket remain locked solid during expansion, so the SSTÖ retains the mass and energy needed for dramatic wound channels. Perfected in the famous Hornady InterLock hunting bullet.