The NcStar Bore Sighter provides the most convenient and accurate method for sighting in rifles of all types. Simply chamber the laser Bore-Sight like a regular bullet and a laser dot will show exactly where the rifle is aiming. It is 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 for hunters, competitive shooters and law enforcement, the Aim Sports Laser Bore-Sight is sure to take the frustration out of sighting in almost any gun.