The Sightmark Core HX 3-9x40 VHR Venison Hunter Riflescope was designed for whitetail hunters. With a 3-9 magnification and a 40mm objective lens, this reliable optic allows hunters to confidently prepare for the season ahead by providing a range-finding BDC reticle that works with a variety of hunting calibers. The 3-9x40 VHR is constructed from a single piece of durable aircraft-grade aluminum to withstand the most punishing conditions and is shockproof, fog proof, and waterproof.