Shotshell having wad with enhanced fin deployment
AssigneeVista Outdoor Operations LLC
InventorsAdam J. Moser, Erik K. Carlson, Matthew S. Schroeder, Gary Hendrickson, Frank Gerzina
Life of this patent
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Abstract
A shotgun shell has a polymer wad with a forward shot cup portion and a rearward propellant cup, the wad in a casing, shot in the shot cup, propellant in the propellant cup, and a primer in a head of the casing. The propellant cup having a plurality of fins extending rearwardly that open to a deployed position upon firing and the shot cup having a plurality of circumferentially spaced axially aligned linear slit segments that permit air to circulate and permit expansion of the shot cup.
Claims14
A shotshell cartridge for firing in a shotgun, the shotshell cartridge comprising:
- a casing with a head portion and a primer,
- a polymer wad contained in the casing, the wad having a forward edge and a rearward edge, the wad having a partition configured as a wall intermediate a rearward propellant cup portion and a forward shot cup portion, the rearward propellant cup portion having an interior surface and a bottom;
- propellant positioned in the propellant cup portion;
- and
- shot positioned in the shot cup portion;
- wherein the rearward propellant cup portion of the wad having a plurality of slits extending rearwardly from a bend region to the rearward edge defining six circumferentially arranged fins, the fins having a prefiring non deployed position and a post firing deployed position, wherein when the shotshell is fired, each of the plurality of fins move to the post firing deployed position;
- wherein the forward shot cup portion comprises a plurality of axially extending slit segments, each slit segment spaced from the forward edge and positioned forwardly of the partition, the slits sized to preclude the shot in the shot cup from passing therethrough, wherein upon firing the slit segments allowing air to enter the shot cup portion to uncompact the shot and to further permit circumferential expansion of the shot cup portion, whereby the wad has an after firing configuration with the fins in the deployed position.
A shotshell cartridge comprising a wad with a forward shot cup portion and rearward propellant cup, the rearward propellant cup portion having a cup base and a plurality of deployable fins extending rearwardly from the cup base, the fins having a first undeployed position and a second deployed position, the cup base having a star shaped projection with a central projection portion and a plurality of rays extending radially outward from the central projection portion oriented toward the plurality of deployed fins, each of the deployable fins movable and retainable at the second deployed position after they are rotated outwardly beyond the second deployed position, the forward shot cup having a sidewall with a plurality of axially extending linear elongate slits extending through the sidewall.
A shotshell cartridge for firing in a shotgun, the shotshell cartridge comprising:
- a casing with a head portion and a primer,
- a polymer wad contained in the casing, the wad having a forward edge and a rearward edge, the wad having a partition configured as a singular wall intermediate a rearward propellant cup portion and a forward shot cup portion;
- propellant positioned in the propellant cup portion;
- and
- shot positioned in the shot cup portion;
- wherein the rearward propellant cup portion of the wad having a plurality of slits extending rearwardly from a bend region to the rearward edge defining six circumferentially arranged fins, the fins having a prefiring non deployed position and a post firing deployed position, wherein when the shotshell is fired, each of the plurality of fins are extended to the post firing deployed position;
- wherein the forward shot cup portion having a plurality of axially aligned linear slit segments circumferentially spaced about the forward shot cup portion, each linear slit segment spaced from the forward edge and positioned forwardly of the partition, the slits sized to preclude the shot in the shot cup from passing therethrough, wherein upon firing the linear slit segments allowing air to enter the shot cup portion to uncompact the shot and to further permit circumferential expansion of the shot cup portion, whereby the wad has an after firing configuration with the fins in the deployed position.
Dependencies are inferred from the claim text.