# US 7,607,393 B2 · Slug ball ammunition

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- Number: US 7,607,393 B2
- Document ID: US7607393B2
- Status: Granted
- Kind: B2
- Application number: 10/915,210
- Filed: 2004-08-10
- Published: 2006-02-16
- Granted: 2009-10-27
- Earliest claimed: 2004-08-10
- Assignees: Alliant Techsystems Inc.
- Inventors: James Y. Menefee
- Web page: https://patentgrep.com/patent/US7607393B2

## CPC

- F42B 7/10: Ball or slug shotgun cartridges
- F42B: EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION (explosive compositions C06B; fuzes F42C; blasting F42D)

## Abstract

A shotshell of the type including a slug projectile includes a wad modified to include a central depression against which a light-weight ball is centered between the wad and the slug. The slug may include a similar depression such that the momentary connection between the wad, ball and slug may increase accuracy of the ammunition.

## Claims

### Claim 1

A shotgun shell comprising:
(a) a shotshell base including a primer;
(b) a tubular hull extending from said shotshell base at a fore end and having an aft end which is closed until fired;
(c) propellant within said hull in contact with said primer;
(d) a wad within said hull, said wad having a fore end adjacent said propellant and an aft end, said aft end including a central depression;
(e) a slug within said hull adjacent the closed aft end, said slug including a fore end having a central depression; and
(f) a single ball positioned between said wad and said slug to be cupped within said central depressions.

### Claim 2

In a shotgun shell including a base with primer and a hull with a base wad holding propellant positioned against said primer, a compression wad and a slug, the improvement comprising disposing a single ball between said compression wad and said slug, said compression wad and slug each being constructed and arranged to include a central depression which contact said ball such that said ball is cupped therebetween.

### Claim 3 (depends on 2)

The shotgun shell of claim 2 wherein said ball is non-metallic.

### Claim 4 (depends on 2)

The shotgun shell of claim 2 wherein said ball is formed of plastic.

### Claim 5 (depends on 2)

The shotgun shell of claim 2 wherein said slug has a diameter less than the bore for said shell.

### Claim 6

A shotgun shell comprising:
(a) a shotshell base including a primer;
(b) a tubular hull extending from said shotshell base at a fore end and having an aft end which is closed until fired;
(c) propellant within said hull in contact with said primer;
(d) a wad within said hull, said wad having a fore end adjacent said propellant and an aft end, said aft end including a central depression;
(e) a slug within said hull adjacent the closed aft end, said slug including a fore end having a central depression; and
(f) a single generally spherical member positioned between said wad and said slug within said central depressions.