PROJECTILE ASSEMBLY WITH STABILIZATION/OBTURATION ENHANCEMENT
First Claim
1. A projectile assembly for conveying a projectile through a firearm barrel, the projectile assembly comprising:
- a sabot and a pusher plate,the sabot having a central longitudinal axis, a forward end, a rearward end and a generally cylindrical outer surface, the sabot comprising;
a projectile seating base with a rear surface at the rear end of the sabot and a forward projectile seating surface opposite the rear surface;
a plurality of wings extending forwardly from the projectile seating base and positioned circumferentially around the forward projectile seating surface, the forward projectile seating surface and wings defining a cup for receiving the projectile, the wings openable outwardly for releasing the projectile after the sabot and projectile leave the firearm barrel;
the pusher plate comprising;
a disc portion positioned at the rear surface of the base portion, the disc portion having a periphery; and
at least one projection extending from the disc portion axially forward, the at least one projection displaced from the periphery of the disc, the disc portion abutting against the rear surface of the sabot and the projection extending into the projectile seating base of the sabot.
17 Assignments
0 Petitions
Accused Products
Abstract
A projectile assembly comprises a base portion for receiving projectiles such as slugs and has an associated pusher plate at a rear end thereof for minimizing or controlling deformation of the rear end of the base portion during firing. The pusher plate has a disc with one or more axially extending projections that extend axially into the rearward end of the base portion thereby reinforcing the base portion and upon firing providing uniform axial deformation and/or obturation of the base portion with respect to a firearm barrel. The projectile assembly may be, for example, part of a shotgun shell slug cartridge, and provides enhanced accuracy over the prior art.
8 Citations
20 Claims
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1. A projectile assembly for conveying a projectile through a firearm barrel, the projectile assembly comprising:
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a sabot and a pusher plate, the sabot having a central longitudinal axis, a forward end, a rearward end and a generally cylindrical outer surface, the sabot comprising; a projectile seating base with a rear surface at the rear end of the sabot and a forward projectile seating surface opposite the rear surface; a plurality of wings extending forwardly from the projectile seating base and positioned circumferentially around the forward projectile seating surface, the forward projectile seating surface and wings defining a cup for receiving the projectile, the wings openable outwardly for releasing the projectile after the sabot and projectile leave the firearm barrel; the pusher plate comprising; a disc portion positioned at the rear surface of the base portion, the disc portion having a periphery; and at least one projection extending from the disc portion axially forward, the at least one projection displaced from the periphery of the disc, the disc portion abutting against the rear surface of the sabot and the projection extending into the projectile seating base of the sabot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A projectile assembly comprising:
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a casing with a rearward primer end and a forward end; a propellant in the casing adjacent the primer end; a primer in the primer end of the casing for igniting the propellant charge; wadding positioned adjacent the propellant; a sabot in the casing forward of the wadding, the sabot having a rear end with a rear surface, and a central longitudinal axis, a pusher plate comprising a rigid disc and a central projection extending from the disc forwardly into the rear end of the sabot, a portion of the pusher plate engaging the sabot; and a projectile positioned in the sabot. - View Dependent Claims (11, 12, 13, 14)
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15. A projectile assembly for conveying a projectile through a firearm barrel, the projectile assembly comprising:
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a sabot having a cylindrical polymer base portion positioned rearwardly of the projectile, the cylindrical polymer base portion having a forward end for facing the projectile, a rearward end for facing toward propellant, a central axis and a length; a pusher plate in engagement with the rearward end of the cylindrical polymer base portion, the pusher plate having a disc portion with a periphery and a forwardly extending projection with a tip end extending from the disc portion along the central axis of the cylindrical polymer base portion into the cylindrical polymer base, whereby upon firing a propellent rearwardly of the projectile assembly in the firearm barrel, the pusher plate and forwardly extending projection facilitate uniform axial deformation of the cylindrical polymer base portion upon compression due to propellant ignition. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification