Precision rifle sight adjuster

Details Precision rifle sight adjuster Precision rifle sight adjuster

1976-10-14

1978-05-23

Martin, Jr., William D.

Geometrical instruments

Straight-line light ray type

Aerial bomb sight

33391, F41G 154

Patent

active

040903052

ABSTRACT:
The instrument includes a shaft or tube which is inserted into the end of a gun barrel and includes at least one balanced module having an index pointer disposed a few inches in front of the free end of the barrel and extending vertically upwardly into the field of vision of the line of sighting. The index pointers are centered directly over the center line of the gun bore and mark its vertical plane. By sighting through the scope of the gun verification of the vertical collimation of the line of sighting can be made since one can readily see if the reticle cross hairs coincide precisely with the index pointers or not. If not, adjustments can be made to correct the line of sighting.

REFERENCES:
patent: 1295075 (1919-02-01), Sheppard
patent: 3112567 (1963-12-01), Flanagan
patent: 3279084 (1966-10-01), Bohlen et al.
patent: 3908282 (1975-09-01), Steffan

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