The scope is backed by the Burris Forever Warranty™, and delivers true performance for a lifetime. It was designed for serious big game and varmint hunters. It’s Ballistic Plex E1™ FFP reticle has trajectory-compensating technology and cascading dots for wind drift compensation when using nearly any big game hunting cartridge. Calculated in MOA, the Ballistic Plex E1™ FFP reticle features trajectory compensation out to 600 yds. Wind dots representing a 10 m.p.h. wind adjustment are located at every hash mark out to 500 yds. The 50 mm objective allows for maximum light collection. Versatile 5-times zoom system provides a larger field of view at close ranges and better target acquisition at long ranges. Reticle measurements remain correct and proportional to the target, regardless of power setting. Reticle features are useful for determining target size and distance to the target, and for trajectory compensation at multiple magnification settings. Progressively Thick Crosshairs (PTC) are very fine in the center and progressively thicker away from the center, for ultra-fast target engagement at close ranges and in low-light conditions; effective at any magnification. Low-profile adjustment knobs have finger-adjustment zero for windage and elevation; easily resets to zero once sighted-in. Advanced windage and elevation adjustment matches the reticle’s MOA measurement system; adjustment is accurate, repeatable, fast, and easy. Ergonomic side focus allows for easy-to-reach parallax adjustment from 50 yds. to infinity. Index-matched, Hi-Lume® multicoating provides low-light performance and glare elimination. Precision-gauged and hand-fitted internal assemblies maintain a consistent point of impact through the magnification range, regardless of shock and vibration. Solid, 1-piece outer tube is stress-free and durable—withstands shock and vibration from even the heaviest-recoiling calibers. 30 mm body tube.