Leupold VX-3 6.5-20x50mm (30mm) Side Focus Target Varmint Hunters Side focus parallax adjustment makes it easy to focus parallax from any shooting position Quickly and easily focus parallax for ranges from 75 yards to infinity DiamondCoat 2 lens coatings on exterior lens surfaces provide the highest level of scratch resistance Leupold has ever offered The twin bias spring exerts up to 30 percent more holding force on the erector, virtually eliminating erector system backlash and stress on the vital internal workings of the scope, for longer life The Leupold Ballistics Aiming System for more accurate long-range shooting