Patent ID: 7963206
Filing Date: 2011-06-21
Classification: F41A,F41G

Abstract:
1. An apparatus for use in sighting-in of a gun, said gun having a barrel, a rear stock and a front stock, said rear stock having two side faces, said apparatus comprising: a) a generally elongated support frame having a front end and a back end; b) a base on which said support frame is mounted; c) a front stock locating device being mounted on said support frame at or near said front end, said front stock locating device comprising: d) a rear stock clamping device being mounted on said support frame at or near said back end, said rear stock clamping device comprising a pair of stock clamping members, each stock clamping member having a substantially vertical surface which is opposed to a substantially vertical surface of another said stock clamping member, each of said stock clamping members being moveable laterally relative to said elongate direction of said support frame, so that when said apparatus is in use, each of said vertical surfaces may be moved to contact a respective side face of said rear stock, each said stock clamping member being mounted on a respective axle at an end of a respective horizontal rod which extends away from an associated said stock clamping member in a direction substantially at right angles to both said substantially vertical surfaces of said clamping members and said elongate direction of said support frame, each horizontal rod having a portion thereof which is externally threaded, each said horizontal rod passing through an internally threaded aperture in a respective support block, with said externally threaded portion engaging with internal threads of said internally threaded aperture, whereby rotation of each horizontal rod causes its associated axle to move towards or away from said rear stock and thereby provide said lateral movement of each stock clamping member; and e) an adjustment device for increasing and decreasing a distance between said support blocks and said support frame, thereby when using said apparatus, raising or lowering said rear stock relative to said support frame, and lowering or raising said band of said gun relative to said rear stock; said prevention of sideways movement device comprises a block mounted on said first horizontal bar, and said block mounted on said first horizontal bar comprises: