Hornady’s Light and Heavy Magnum ammo with SST bullets deliver flatter trajectories and higher velocities. Hornady achieves higher velocity by combining a special cool-burning powder with a revolutionary loading technique that doesn’t create added heat and pressure that shortens the life of your favorite gun. The SST bullet features a polymer tip that reduces drag, improves aerodynamics and delivers a high ballistic coefficient for flat trajectories. Upon impact, the tip initiates expansion for wide, deep wound channels and sure kills. This is loaded ammunition.