Laser bore-sight scope and mount for riffles

The present invention relates generally to an improved method for adjustably positioning and attaching the mounting rings onto a firearm for ultimate attachment of an optical gun sight such as a telescopic sight (scope) to the rings. The method of the present invention employs dual sources and beams of coherent light wherein one of the sources is positionably mounted within the mounting rings into which the optical gun sight is to be placed, and its beam is directed onto a remote target. This coherent light source is utilized in combination with a second coherent light source, the beam of which passes axially through the bore of the firearm and onto the same remote target. Briefly, coherent light from the two sources are directed onto the same remote target, and the disposition of the light emanating from the source within the mounting rings is used to achieve proper placement of the rings on the body of the firearm. A method of adjustably positioning and attaching mounting rings to a firearm for subsequent attachment of an optical gun sight (telescopic sight) within the rings. Two separate beams of coherent or monochromatic light are utilized, both of which are directed onto a remote target. The first beam is created from a bore sighting assembly which directs its beam through the bore of the firearm. The second beam originates from a hollow cylindrical light source mounted within the rings, the outer diameter of the hollow cylinder being designed to mate within the actual mounting rings which are being positioned. With both beams simultaneously impinging upon the remote target, the user may then positionably adjust the rings retaining the second source of coherent light so that the user, with data on the ballistics of the ammunition to be used, may accurately pre-adjust the mounting rings on the firearm prior to mounting the scope within the mounting rings.