Vortex's Crossfire II 3-9x50mm Riflescope was specifically designed for use with the heavy hitting straight-wall cartridges like .450 Bushmaster, .350 Legend, and .45-70 government, and comes packed with features right out of the box. It comes equipped with a Bullet Drop Compensator (BDC) reticle which has been optimized for use with straight walled cartridges. The reticle features a series of hash marks that serve as holdover points, allowing for accurate shooting for targets out to 300 yards. In addition, the Crossfire II is outfitted with an SD optical system and fully multi-coated lenses for enhanced light transmission and optical performance.Specifications and Features: Scope Weight: 18.4 ounces Scope Length: 12.8 inches Magnification Range: 3x - 9x Scope Objective Diameter: 50mm Scope Tube Size / Mount: 1" Turret Adjustment (Click Value): .25 MOA Elevation Turret Details: 60 MOA 15 per Revolution Windage Turret Details: 60 MOA Parallax Adjustment: Fixed at 100 yds Reticle Position: Second focal plane Reticle Details: Straight-Wall BDC Field of View: 32 feet @ 100 yards (low magnification); 12.9 feet @ 100 yards (high magnification) Eye Relief: 3.8 inches Illuminated Reticle: No Package IncludesTethered Lens Covers, Lens Cloth Scope Finish: Black Scope Turret Rotation: Counter Clockwise (CCW)