The Boresight Telescope is mounted in an adjusting block. This Boresight Telescope can be used in a number of boresighting and table or plane applications. The WK-29-8050 can be used in the 7.62mm and 50 caliber machine alignment bracket by using appropriate retainer mounting holes on the bracket. Power: 24x. Field of View: 1°. Focus Range: 12 ft. to infi nity. Target Position Adjustment: ± .05 Mil. This bore can also use various sizes of other custom designed brackets and fi xtures.