This has been rated as one of the best Rifle scopes out there. Whether you want precision long-range shooting, tactical applications, or extreme long range hunting adventures, the new Cronus BTR rifle scope is just what the doctor ordered. With all of the same key features of the Cronus line, the new Cronus BTR is redesigned to be even better!  We improved the parallax adjustment yard markings to go from 25 yards to infinity.