Whatever the reason you shoot straight-wall cartridges (like the .450 Bushmaster, 350 Legend, and .45-70 Government), the Crossfire II 3-9×50 Straight-Wall is built to help you get the most out of these classic cartridges. With a Bullet Drop Compensator (BDC) reticle optimized for straight-wall hunting, you'll enjoy accurate holdovers and rapid target acquisition. The one-inch tube provides an ideal combination of adjustment, size, and weight for a variety of hunting scenarios, and of course, you can count on the workhorse value of the Crossfire II line to help you fill those tags, year after year. 1" Single Piece Main Tube Second Focal Plane Straight Wall BDC ret Mfg: Vortex Optics