The 3-18x50 Z6 2nd Generation BT Riflescope with 4W reticle from Swarovski combines a fully multicoated optical path with a weatherproof housing and customizable ballistic turrets to create a dependable and precise targeting instrument. This second generation Z6 scope offers a streamlined form factor and improved functionality compared to its predecessor. The latest Z6 models also have a 30mm main tube that houses extra-low dispersion HD glass elements and transmits the premium image quality synonymous with Swarovski sport optics. This configuration of the Z6 riflescope features a second focal plane illuminated 4W reticle designed for precise wind drift compensation throughout the entire magnification range. Vertical lines in 2 MOA increments along the reticle's horizontal axis enables precise windage correction and shot placement. In addition to a shooter's base zero, Swarovski's Ballistic Turret (BT) impact point correction system enables a shooter to calibrate three distinct ballistic programs for swift zeroing at different distances. The BT locking mechanism preserves the three user-defined windage/elevation adjustments and prevents accidental movement of either turret.