Saves time and money
Allows for initial sighting in of optical sights
These caliber specific arbors accept the Aimshot Bore Sight 264 Win/.300 Win/.300 Wby Mag/.257 Wby Mag/7mm Rem Mag/.338 Mag/.340 Wby/.358 Norma Mag/.308 Norma Mag/7mm STW/.338 Win/7mm Wby/.338 Win Mag Laser Diode Module. Simply insert the module into the arbor and then insert the arbor into the chamber. A bright laser beam shines through the bore of the gun and is visible on the target, allowing for initial sighting in of optical sights. This system saves time and money that would otherwise be wasted getting the shots "on paper."