The Vortex Viper 3.5-10x50 PA riflescope with a Dead-Hold BDC reticle features recoil reduction, full multi-coated optics with 95% light transmission, heavy duty Precision Force spring systems, Precision glide erector system. This riflescope is ideal for big game, muzzleloader, slug shotfun, predator/varmint, and long range applications. The Dead-Hold BDC reticle eliminates guessing on hold-over and windage concerns.