Composite shot wad structure for steel and other hard shot

Details Composite shot wad structure for steel and other hard shot Composite shot wad structure for steel and other hard shot

1987-01-20

1988-09-27

Tudor, Harold J.

Ammunition and explosives

Cartridges

Shot

F42B 708

Patent

active

047733292

ABSTRACT:
An improved composite wad structure has a unique laminated shot pocket portion. The wad structure is useful in a shotshell with hard shot pellets, such as steel or tungsten shot, having a hardness generally at least equal to that of the barrel of a gun in which the shotshell is to be fired. The laminated shot pocket portion includes a thin-walled, cup-shaped inner liner for supporting a column of the hard shot and thick-walled, cup-shaped outer tubular body encompassing the inner liner. The inner liner is formed of a tough, high tensile strength material capable of withstanding compressive forces generated by acceleration of the hard shot, when the shotshell containing the wad structure is fired in the barrel of the gun, so as to protect the gun barrel from being scored by the hard shot. The outer body is formed of a soft, low tensile strength material capable of expanding to obturate the combustion gases produced in the gun barrel when the shotshell is fired. The inner liner is nested in and moded to the outer body.

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