Device for increasing and standardizing the scatter of shotguns,

Details Device for increasing and standardizing the scatter of shotguns, Device for increasing and standardizing the scatter of shotguns,

1976-04-29

1978-02-07

Jordan, Charles T.

Firearms

Barrels

Choke devices

F41C 2100

Patent

active

040719715

ABSTRACT:
A device for controlling the scatter of shot wherein the barrel of the shotgun adjacent the muzzle is provided with grooves disposed at a small angle to the longitudinal axis of the barrel. The grooved portion of the muzzle is constricted to provide a converging then diverging wall portion. The roots of the grooves define a cylinder having a diameter comparable to the diameter of the barrel. The width of the grooves is greater than the size of the shot and discharge of the shot through the barrel past the grooves produces a twisting movement which provides an uniform distribution of the shot.

REFERENCES:
patent: 329303 (1885-10-01), Fosberry
patent: 863431 (1907-08-01), Parker
patent: 2054132 (1936-09-01), Lewis
patent: 2340821 (1944-02-01), Russell
patent: 2700839 (1955-02-01), Finlay et al.
patent: 3367055 (1968-02-01), Powell

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