Patent ID: 6813855
Filing Date: 2004-11-09
Classification: F41G,G02B

Abstract:
A method of correcting the cant of vertical and horizontal cross hairs in the reticle system of a sighting scope attached to a firearm having a receiver section with a flat portion oriented perpendicular to the vertical axis of the receiver section, and comprising the steps of:placing the firearm sighting scope in a condition whereby it may be rotated about its longitudinal axis; mounting a horizontal level assembly on the flat portion of the receiver section transversely to its longitudinal axis; rotating the firearm about its longitudinal axis until the horizontal level assembly indicates the firearm transverse axis is level thereby causing the firearm vertical axis of symmetry to be in a true vertical condition; locating a vertical reference distant from but in alignment with the firearm sighting scope; rotating the firearm sighting scope about its longitudinal axis until the vertical cross hair of the reticle system is in alignment with said vertical reference; and placing the firearm sighting scope in a condition whereby it may not be readily rotated about its longitudinal axis.