Designed with Crossbow hunters in mind, the Model 512 Crossbow sight utilizes the unique properties of holography to create optimal range scaling data in a heads-up display. A pre-calculated ranging scale is projected at the target and measures the back to the belly of a normal whitetail deer (16″). Simply position the base of the scale at the belly and read from where the back intersects the scale – it is that easy. With the integral ranging pattern, there is not any useless body movement or added noise whilst within the stand. Both range information and aiming reticle are displayed within the similar sight picture to quickly line up your shot. For the reason that Xbow sight easily attaches to most crossbows, now Bow Hunters may have the similar durability and reliability that firearms hunters have experienced for years.