Lead attached sabot slug

• US 7,201,104 B2
• Filed: 08/19/2003
• Issued: 04/10/2007
• 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: Stone, Jeffrey W., McMurray, Christopher R.
• Primary Examiner(s): NGUYEN, TRINH T
• Application Number:
  US10/643,831
• Publication Number:
  US 20040079256A1
• Time in Patent Office: 1,330 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

A 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 sabot having a longitudinal axis, comprising:

a compression section defining a payload receiving chamber at a forward end of the sabot for receiving a slug therein, the compression section including a plurality of fins defined by a combination of alternating ridges on an interior and an exterior surface thereof, wherein the ridges are spaced from one another along the longitudinal axis; and

a solid section extending rearwardly from the compression section;

wherein the compression section is adapted to at least partially collapse along a direction of the longitudinal axis upon firing while remaining substantially intact to produce a volume change.

2. The sabot of claim 1, wherein the compression section further includes a locking ring mounted within the payload receiving chamber for engaging the slug.

3. The sabot of claim 2, wherein the locking ring is adjacent to a front edge of the sabot.

4. The sabot of claim 1, wherein the payload receiving chamber further includes a post extending from the solid section toward a forward portion of the sabot.

5. The sabot of claim 1, wherein the solid section includes a powder cup section formed opposite the compression section at a rear portion of the sabot.

6. The sabot of claim 1, wherein the sabot is axisymmetric about the longitudinal axis.

7. The sabot of claim 1, wherein the sabot is polymeric.

8. The sabot of claim 7, wherein the sabot comprises a high density polyethylene.

9. A firearm round having a longitudinal axis comprising:

a sabot including a compression section defining a payload receiving chamber therein and a solid section connected to the compression section, said compression section including a plurality of alternating ridges on an interior and an exterior surface thereof, wherein the ridges are spaced from one another alone the longitudinal axis; and

a slug received within the payload receiving chamber of the sabot;

wherein the compression section is adapted to at least partially collapse along a direction of the longitudinal axis upon firing to produce a volume change.

10. The firearm round of claim 9, 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.

11. The firearm round of claim 10, wherein the nose of the slug includes a nose cavity.

12. The firearm round of claim 10, wherein the stem of the slug includes a post cavity.

13. The firearm round of claim 12, wherein the payload receiving chamber of the sabot includes a post fitted within the post cavity of the slug.

14. The firearm round of claim 10, wherein the driving band includes a length less than about 25% of an overall diameter of the firearm round.

15. The firearm round of claim 10, wherein the stem has a diameter less than a diameter of the driving band.

16. The firearm round of claim 9, wherein the slug comprises at least about 95% by weight lead.

17. The firearm round of claim 16, wherein the slug further comprises antimony.

18. The firearm round of claim 9, wherein the slug is plated or jacketed.

19. The firearm round of claim 9, wherein the compression section of the sabot further comprises a locking ring mounted within the payload receiving chamber so as to engage the slug.

20. The firearm round of claim 9, wherein the solid section of the sabot includes a powder cup.

21. The firearm round of claim 9, wherein the sabot is axisymmetric about the longitudinal axis.

22. The firearm round of claim 9, wherein the sabot has a front and a rear, the slug abutting a front edge of the front of the sabot.

23. The firearm round of claim 22, wherein the compression section of the sabot further comprises a locking ring adjacent the front edge of the sabot, the locking ring abutting a stem of the slug.

24. The firearm round of claim 23, wherein the slug comprises a driving band abutting the front edge of the front of the sabot, and a nose extending forwardly from the front edge, and wherein the driving band is adapted to engage rifling of a barrel of a rifled firearm.

25. The firearm round of claim 24, wherein the driving band includes a length less than about 25% of an overall diameter of the firearm round.

26. The firearm round of claim 24, wherein the stem has a diameter less than a diameter of the driving band.

27. The firearm round of claim 22, wherein the sabot is polymeric.

28. The firearm round of claim 27, wherein the sabot comprises a high density polyethylene.

29. A sabot having a longitudinal axis, comprising:

a compression section defining a payload receiving chamber therein, said compression section including a plurality of fins defined by a combination of alternating internal and external ridges on an interior surface and exterior surface thereof, wherein the ridges are spaced from one another along the longitudinal axis;

a post integrally formed within the payload receiving chamber;

a locking ring residing within the payload receiving chamber; and

a solid section connected to the compression section;

wherein said compression section is adapted to at least partially collapse along a direction of the longitudinal axis upon firing, while remaining substantially intact, to produce a volume change.

30. The sabot of claim 29, wherein the solid section includes a powder cup section.

31. The sabot of claim 29, wherein the sabot comprises a high-density polyethylene, low-density polyethylene, linear, high-density polyethylene, and combinations thereof.

32. The sabot of claim 29, and further comprising a projectile received within the payload receiving chamber and extending forwardly from the compression section.

33. The sabot of claim 32, wherein the sabot is axisymmetric about the longitudinal axis.

34. The sabot of claim 32, wherein the sabot has a front and a rear, the projectile abutting a front edge of the front of the sabot.

35. The sabot of claim 34, wherein the locking ring abuts a stern of the projectile.

36. The sabot of claim 35, wherein the projectile comprises a driving band abutting the front edge of the front of the sabot, and a nose extending forwardly from the front edge, and wherein the driving band is adapted to engage rifling of a barrel of a rifled firearm.

37. The sabot of claim 36, wherein the driving band includes a length less than about 25% of an overall diameter of the firearm round.

38. The sabot of claim 36, wherein the stem has a diameter less than a diameter of the driving band.

39. The sabot of claim 34, wherein the sabot is polymeric.

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

a sabot including a compression section defining a payload receiving chamber therein, said compression section including a plurality of fins defined by a combination of alternating internal and external ridges on an interior and exterior surface thereof, a post integrally formed within the payload receiving chamber and a solid section projecting rearwardly from the compression section, wherein the ridges are spaced from one another along the longitudinal axis;

a slug fitted to the post of the sabot;

wherein said compression section is adapted to at least partially annularly collapse along a direction of the longitudinal axis upon firing to produce a volume change.

41. The firearm round of claim 40, wherein the slug comprises a stem defining a chamber adapted to receive the post of the sabot.

42. The firearm round of claim 40, wherein the slug projects forwardly from the compression section of the sabot.

43. The firearm round of claim 40, wherein the post substantially fills the payload receiving chamber.

44. The firearm round of claim 40, wherein the slug comprises at least about 95% by weight lead.

45. The firearm round of claim 40, wherein the sabot is axisymmetric about the longitudinal axis.

46. The firearm round of claim 40, wherein the sabot has a front and a rear, the slug abutting a front edge of the front of the sabot.

47. The firearm round of claim 46, wherein the compression section of the sabot further comprises a locking ring adjacent the front edge of the sabot, the locking ring abutting a stem of the slug.

48. The firearm round of claim 46, wherein the slug comprises a driving band abutting the front edge of the front of the sabot, and a nose extending forwardly from the front edge, and wherein the driving band is adapted to engage rifling of a barrel of a rifled firearm.

49. The firearm round of claim 48, wherein the driving band includes a length less than about 25% of an overall diameter of the firearm round.

50. The firearm round of claim 48, wherein a stem of the slug has a diameter less than a diameter of the driving band.

51. The firearm round of claim 46, wherein the sabot is polymeric and the slug is metallic.