8mm X 57 Jrs Boresight 30.20 - Adjustable Parallax: 50 Yards

- Adjustable Parallax: 50 Yards - Infinity

- The Power Stroke

cloud cover and wind

vapor-deposition coatings to provide unparalleled image quality

- Rockwell Steel Hardness: 50-53

8mm X 57 Jrs Boresight 30.20 - Adjustable Parallax: 50 YardsThe Sightmark Laser Boresight provides the most convenient and accurate method for sighting in rifles and shotguns of all types. Simply chamber the boresight like a regular bullet and a laser dot will show exactly where the rifle is aiming. Its easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune the weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect