This 30.06 Laser Bore Sighter Cartridge made by NcStar provides the most convenient and accurate method for sighting in 30.06 Rifles like the M1 Garand. 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 firing 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, this 30.06 Laser Bore-Sighter is sure to take the frustration out of sighting in almost any gun.