Olin Corporation

Olin Corporaton

Robert J Gardner

Gerald Todd Eberhart

Stephen W Meyer

Morris C Buenemann, Jr

Stephen J Bilsbury

Alan J Corzine

Michael Eugene Stock, Jr

Scott H Mayfield

Morris C Buenenmann, Jr

Cynthia L Johnson

Gregory C Best

David E Merrill

Brian B Belknap

Light transmissive red-colored tip of a projectile

An ammunition cartridge includes: a basewad disposed within a tube proximate the aft end of the tube; a projectile wad disposed within the tube proximate a fore end of the tube; a propellant charge disposed within a chamber formed between the projectile wad and the basewad; and a projectile disposed within the tube between a forward facing surface of the projectile wad and the fore end of the tube. The aft end of the projectile wad has a powder cup skirt formed thereon, and a chamfer is formed around an outer perimeter of a lip of the powder cup skirt. The chamfer allows the powder cup skirt to be slidably received within a skirt of the basewad to form the chamber. The chamfer provides a clearance at the powder cup skirt lip, which helps to insure undisturbed entry into the mouth of the basewad skirt.

Projectile wad for ammunition cartridges

A sabot and shotshell combination includes a bullet, a shotshell hull, propellant, a shotshell primer, wadding, and a sabot comprising a molded member having a base portion and a plurality of petal portions each extending from a proximal base root to a distal tip, the base and petals defining a volume for accommodating a bullet. A reinforcement is at least partially embedded in the base, the reinforcement being more rigid than the molded member and having a plurality of apertures with the base portion extending through at least one of the apertures to retain the reinforcement within the molded member upon firing.

Sabot and shotshell combination

A plastic, cup-shaped, multi-petal sabot housing a sub-caliber projectile for use such as in shotgun cartridges. The sabot engages the rifling of the shotgun barrel and transfers the spin to the projectile. A reinforcement disk is advantageously at least partially embedded in a sabot base and has a central aperture and a plurality of additional apertures. Sabot base material extends through the additional apertures. Advantageously, in its relaxed condition, each sabot petal includes a protrusion from its inboard surface for engaging a projectile ogive. The protrusion and its contact area with the projectile are fractions of the local petal width.

Sabot for a bullet

An ammunition cartridge has a tube extending along a central longitudinal axis from an aft end to a fore end. The tube has an interior surface and an exterior surface. A metallic head has a sleeve portion secured to the tube along an aft section of the tube and has a centrally-apertured web portion spanning the sleeve portion so as to form a base of the cartridge. A basewad is contained within the tube and is separately formed therefrom. The basewad is located proximate the aft end of the tube. The basewad has a generally cylindrical exterior surface engaging the interior surface of the tube, an aft surface contacting the metal head, an interior surface. The interior surface extends from a generally forward-facing inner portion, forward and outward to a generally inward-facing fore portion so as to define a skirt portion of the basewad between the exterior surface and interior surface. At least one projectile is carried within a fore volume of the tube. A propellant charge is located aft of the projectile. Wadding is located between the propellant charge and the projectile. The wadding includes an aft portion located at least partially concentrically within the skirt portion of the basewad so as to define a powder chamber containing the propellant charge.

Shotshell basewad

The combination of a shot sleeve and a shot cup base form a universal shot wad that precisely fixes an adjustable volume for the shot column of a wide range of shot shell loads. The shot sleeve is a generally tubular member with an open end and a closed end. The inside of the shot sleeve is substantially smooth adjacent to both the open end and the closed end and has a plurality of substantially parallel, inwardly projecting, first ribs circumscribing the inside between the smooth portions. The shot cup base is a second tubular member and also has an open end and a closed end. A plurality of substantially parallel, outwardly protruding, second ribs circumscribe an outside of the shot cup base. The volume of a shot receiving portion is controlled by inserting the shot cup base a desired distance into the shot sleeve such that the two sets of ribs interengage. Apertures formed through the shot cup base cause the sidewall portions of the shot cup base to segment and open outward on expulsion from the muzzle of a shotgun increasing aerodynamic resistance. The increased aerodynamic resistance causes the shot cup base to separate from the shot string minimizing interference of the shot flight pattern by the shot cup base.

Universal shot wad

Extended tab power tool strip

A water resistant shotshell has an internal moisture seal to preclude moisture intrusion into the propellant charge. The seal is at least one flexible tapered lip on the plastic shot wad which is compressed against the inside surface of the shotshell tube over the powder charge. The preferred embodiment is a two piece shot wad having a shot cup portion and a wad portion. The wad portion has a central disk portion and a tubular rim terminating in a pair of opposing flexible lips which provide a dual moisture seal.

Water resistant shot wad

The invention uses a pair of curved opposed diagonal bars between the wad and cup. The bars (deformable resistance members) buckle in the radial direction and end up basically flat between the wad and cup to give surprisingly and unexpectedly high amounts of collapse (80% or more). This allows the space between wad and cup to be decreased significantly without sacrificing cushioning.

Shot wad with highly collapsible hinge portion

A moisture seal over shot wad for a roll crimped shotshell casing. The seal has a pair of spaced tubular flanges which comprise the rim portion of the disk shaped over shot wad. The tubular flanges are designed to receive the terminal end of the shotshell casing as the roll crimp is formed to frictionally engage the terminal end and seal the casing against the intrusion of moisture.

Water resistant top wad for shotshells

An ammunition cartridge comprises a tubular case having a head end and an open mount end, at least two propellant charges contained within said case, and a hermetic barrier means installed between the charges for separating the charges from one another and preventing premature crossflow of gases. One embodiment of the barrier means comprises a formed-in-place solid layer of polymeric resin material. This layer is formed in place on top of a first propellant charge, conforms to the surface contour of the first charge and extends radially across the charge to the tubular case. Another preferred barrier means comprises a collapsible flexible polymeric disk extending radially across the case between the charges. This disk has a diameter at least equal to that of the inside of said case and a tubular outer rim operably engaged with said tubular case to provide a circumferential seal between the charges.

Stratified propellant charge barriers for small and medium caliber

In combination with a cartridge case having a tubular wall and a head closing one end of the wall, a primer disposed through the head and a propellant charge in the case, a collapsible basewad is disclosed which comprises a unitary body between the charge and the head. The unitary body has an upwardly concave upper portion opening to the propellant charge and a generally cylindrical base portion. The upper portion is deflectable. These portions and the tubular wall define therebetween an annular cavity rearward of the propellant charge. This cavity is collapsed upon ignition of the propellant charge by deflection of the upper portion thereby reducing the recoil felt by the shooter without adding any parasitic weight to the projectile load. The upper portion of the basewad preferaly has an inverted truncated hollow cone shape. An upwardly open annular channel in the upper end surface of the base portion of the basewad enhances the sealing force between the base portion of the basewad and the tubular wall of the cartridge casing.

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Bethalto, IL, United States of America

Robert J Gardner