Bushnell MSR Optics 4.5-18x40mm Rifle Scope Drop Zone .308/7.62 BDC Reticle Drop Zone .308 BDC reticle, Duplex crosshair configuration with long thick outer posts and short thin center aiming hairs 4.5-18x Zoom Magnification, Ballistic drop compensation indicators on lower vertical axis calibrated out to 500 yd Positioned on the second (rear) focal plane, 3.7" eye relief, 8.6-2.3mm exit pupil Anti-reflection fully multicoated optics, 40mm objective lens, 1" one-piece main-tube 22-7.3 ft (6.7-2.2m) field of view at 100 yd, 1/4 MOA impact point correction clicks Compatitble with a wide variety of hunting rifles