Lead attached sabot slug

• US 8,261,667 B2
• Filed: 01/31/2007
• Issued: 09/11/2012
• Est. Priority Date: 08/21/2002
• Status: Expired due to Fees

• Current Assignee: Ammunition Operations, LLC (Vista Outdoor Inc.)
• Original Assignee: RA Brands LLC (RA Factors, Inc.)
• Inventors: McMurray, Christopher R., Stone, Jeffrey W.
• Primary Examiner(s): NGUYEN, TRINH T
• Application Number:
  US11/669,595
• Publication Number:
  US 20070119330A1
• Time in Patent Office: 2,050 Days
• Field of Search: 102/520, 102/521, 102/522, 102/450, 102/461, 102/439
• US Class Current: 102/520
• CPC Class Codes: F42B 14/064 Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
• CPC Class Codes: F42B 7/08 Wads, i.e. projectile or shot carrying devices, therefor
• CPC Class Codes: F42B 7/10 Ball or slug shotgun cartridges

Abstract

Disclosed is sabot and a firearm round for a firearm. The sabot includes a compression section defining a payload receiving chamber. The payload chamber receives a slug to form the firearm round. Additionally, the sabot includes a solid section connected to the compression section. The solid section can include a powder cup section for sealing ignition gasses. Typically, the sabot is formed from a high density polyethylene.

Claims

1. A firearm round having a longitudinal axis, comprising:

a polymeric sabot, the sabot comprising;

a receiving chamber at a front of the sabot, the receiving chamber defined in part by a plurality of alternating interior and exterior ridges, wherein the alternating interior ridges are spaced from one another along the longitudinal axis; and

a metallic slug disposed within the receiving chamber wherein the receiving chamber is adapted to at least partially collapse along a direction of the longitudinal axis upon firing.

2. The firearm round of claim 1, wherein the slug abuts at least one of the alternating interior ridges.

3. The firearm round of claim 1, wherein the slug abuts a front edge of the front of the sabot.

4. The firearm round of claim 1, wherein the sabot is axisymmetric about the longitudinal axis.

5. The firearm round of claim 1, wherein the sabot further comprises a solid section at a rear of the sabot.

6. The firearm round of claim 5, wherein the sabot further comprises a post extending from the solid section toward the front of the sabot.

7. The firearm round of claim 6, wherein the slug comprises a stem defining a chamber adapted to receive the post of the sabot.

8. The firearm round of claim 5, wherein the solid section comprises a powder cup section at the rear of the sabot.

9. The firearm round of claim 1, wherein the sabot further comprises a locking ring engaged with the slug.

10. The firearm round of claim 9, wherein the locking ring is adjacent to a front edge of the front of the sabot.

11. The firearm round of claim 1, wherein the slug has a generally annular shape and a rear edge of the slug abuts a front edge of the front of the sabot.

12. The firearm round of claim 1, wherein the slug comprises a nose, a driving band adjacent the nose and a stem connected to the driving band, and wherein the driving band is adapted to engage rifling of a barrel of a rifled firearm.

13. The firearm round of claim 12, wherein the driving band has a length less than about 25% of an overall diameter of the firearm round.

14. The firearm round of claim 12, wherein the stem has a diameter less than a diameter of the driving band.

15. The firearm round of claim 12, wherein the nose includes a nose cavity at a front of the nose.

18. The firearm round of claim 1, wherein the plurality of alternating interior and exterior ridges are annular.

16. A firearm round having a longitudinal axis, comprising:

a polymeric sabot, the sabot comprising;

a receiving chamber at a front portion of the sabot, the receiving chamber defined in part by a plurality of alternating interior ridges, wherein the alternating interior ridges are spaced from one another along the longitudinal axis; and

a metallic slug disposed within the receiving chamber, the slug having a driving band abutting a front edge of the sabot, and a stem abutting at least one of the alternating interior ridges,

wherein the receiving chamber is adapted to at least partially collapse along a direction of the longitudinal axis upon firing.

17. The firearm round of claim 16, wherein an exterior surface of the receiving chamber is defined in part by a plurality of exterior ridges spaced from one another along the longitudinal axis.

19. The firearm round of claim 17, wherein the plurality of alternating interior and exterior ridges are annular.

20. The firearm round of claim 17, wherein the plurality of alternating interior and exterior ridges are annular and the interior ridges abut the metallic slug.