The Vortex Optics Viper HS 2. 5-10×44 is one of multiple configurations in the Viper HS (Hunting & Shooting) line. The Dead-Hold BDC reticle is good for any hunting or shooting at varying ranges where estimating hold-over would be a concern. In the advanced optical system, the XD glass renders an image that is sharp and clear from edge to edge. There are XR multi-coated lenses allowing you to capture the most light from dawn til dusk. The 4x zoom range will pull you close to your target.