Looking for a riflescope that compensates for bullet drop regardless of rifle and caliber with the turn of a dial? The Uni-Dial 5-30X56s patented ballistic elevation turret has six colored markers which can be positioned to quickly reference up to 6 different distances. All you need is to know your Data of Previous Engagement or D.O.P.E. Once the turret has been set, the shooter will be able to hit targets by turning to the respective marker for that distance. The Uni-Dial 5-30X was designed for the long range target shooter or hunter. With a 56mm objective and 34mm tube, the Uni-Dial 5-30X is a beast at light gathering. The HD Low Dispersion glass lenses produce a bright and crisp sight picture with true color fidelity, even in low light. The Second Focal Plane Mil Reticle clearly indicates every quarter Mil. All glass lenses in the UD530X56 are fully multi-coated with DiamondTuff14 for maximum light transmission. Nitrogen purging and rubber gasket seals guarantee fogproof performance in all temperatures and climates.