Abstract: A gun jig including first and second templates defining first and second end surfaces, a first substantially planar surface extending between the first and second end surfaces, a second substantially planar surface oriented substantially perpendicular to the first planar surface and extending between the first and second end surfaces, a first recessed surface extending between the first and second end surfaces, a first plurality of guide holes extending between the first planar surface and the first recessed surface, a second plurality of guide holes extending between the second planar surface and the first recessed surface, a first connecting surface extending between the first and second end surfaces and joining the first planar surface and the first recessed surface, and a second connecting surface extending between the first and second end surfaces and joining the second planar surface and the first recessed surface.

Abstract: An improved shot compressor for use in a shotgun cartridge containing shot. The improved compressor has a plurality of equally spaced fins disposed around and integral with a centrally disposed collapsing means for controlling the pattern of opening shot as it leaves the barrel of a shotgun upon firing.

Abstract: A shot compressor device for use in a shotgun cartridge containing shot wherein in a first embodiment or wad includes an upstanding tube centrally disposed on the bottom wall and parallel to the side walls of the cartridge with the shot being disposed in an area defined between the tube and the side walls above the bottom wall and wherein the tube is capable of being collapsed and compressed inwardly when the cartridge is fired by a shotgun. A collar for use in a shotgun cartridge containing shot having a cylinder integral with the base of the tube with an outer diameter substantially equal to the inside diameter of the cartridge wherein the cylinder is disposed between the shot and the cartridge and a plurality of flaps radially extending inwardly from the upper edge of the cylinder with each of the flaps being oriented above the upper surface of the shot wherein the flaps cooperate to prevent the shot from abrading the interior surface of a shotgun when the cartridge is fired.