Slug assembly for shotgun shotshell

• US 4,779,535 A
• Filed: 10/16/1987
• Issued: 10/25/1988
• Est. Priority Date: 10/16/1987
• Status: Expired due to Fees

• Current Assignee: Nagatoshi Maki
• Original Assignee: Nagatoshi Maki
• Inventors: Maki, Nagatoshi
• Primary Examiner(s): Locker, Howard J.
• Application Number:
  US07/109,267
• Time in Patent Office: 375 Days
• Field of Search: 102/501, 102/448, 102/525, 102/520, 102/521, 102/517-519, 102/532, 102/524, 102/525, 102/430, 102/439, 102/513, 244/3.23, 86/28, 86/39
• US Class Current: 102/501
• CPC Class Codes: F42B 10/02 Stabilising arrangements
• CPC Class Codes: F42B 7/08 Wads, i.e. projectile or shot carrying devices, therefor

Abstract

A slug assembly for a shotgun shotshell having a case in which the slug assembly is incorporated, comprising a metal slug having a center axial cavity, an elastically deformable stabilizer which is fitted in the cavity, and a filler which is charged in the cavity. The stabilizer has a plunger having a diameter larger than a diameter of the opening of the cavity of the slug and an annular flange having a diameter substantially identical to a diameter of a barrel bore of a shotgun in which the slug assembly is to be used. The plunger and annular flange are coaxial to each other. The plunger cooperates with the cavity of the slug to maintain a distance between a rear end face of the slug and a front end face of the annular flange of the stabilizer at a predetermined value.

Claims

1. A slug assembly for a shotgun shotshell having a case with opening, wherein a powder, wad or wads and the slug assembly are charged, in this order, in the case, and the opening of the case is crimped, wherein the slug assembly comprises a metal slug which is provided with a center axial cavity opening at the rear end thereof, an elastically deformable stabilizer which is provided with a plunger having a portion with a diameter larger than a diameter of the rear opening of the cavity of the slug and an annular flange having a diameter substantially identical to a diameter of a barrel bore of a shotgun in which said slug assembly is to be used, said plunger and said annular flange being coaxial to each other, a predetermined amount of filler which is charged in said cavity of the slug, and positioning means defined by the plunger and the cavity of the slug for maintaining a distance between a rear end face of the slug and a front end face of the annular flange of the stabilizer at a predetermined value, said stabilizer being fitted into the cavity of the slug so that the opening of the cavity is closed by said positioning means said plunger being axially pressed in the cavity having the predetermined amount of filler charged therein to cause an internal pressure in the cavity when the explosion of the powder takes place.

2. A slug assembly according to claim 1, wherein said flange of the stabilizer is provided, on the outer peripheral surface thereof, with a plurality of axial slits.

3. A slug assembly according to claim 1, wherein said positioning means comprises a tapered surface portion provided on the plunger which comes into contact with the cavity of the slug when the stabilizer is fitted in the cavity.

4. A slug assembly according to claim 1, wherein said positioning means comprises a stepped portion provided on the plunger to come into contat with the slug when the stabilizer is fitted in the cavity of the slug.