Non-lead hollow point bullet

• US 6,546,875 B2
• Filed: 04/23/2001
• Issued: 04/15/2003
• Est. Priority Date: 04/23/2001
• Status: Expired due to Fees

• Current Assignee: UT-Battelle LLC
• Original Assignee: UT-Battelle LLC
• Inventors: Lowden, Richard A., Vaughn, Norman L.
• Primary Examiner(s): TUDOR, HAROLD JAY
• Application Number:
  US09/840,250
• Publication Number:
  US 20020152915A1
• Time in Patent Office: 722 Days
• Field of Search: 102/501, 102/507-510, 102/514-517, 102/518, 102/519
• US Class Current: 102/507
• CPC Class Codes: F42B 12/34 expanding before or on impact, i.e. of dumdum or mushroom type

Abstract

The non-lead hollow point bullet of the instant invention comprises a mixed construction slug further comprising, a monolithic metal insert having a tapered (preferred conical) hollow point tip and a tapered (preferred conical) tail protrusion, and an unsintered powdered metal composite core in tandem alignment with the insert. The core has a hollow tapered (preferred conical) cavity tip portion coupled with the tapered (preferred conical) tail protrusion on the insert. An open tip jacket envelops at least a portion of the insert and the core. The jacket is swaged at the open tip.

Claims

1. A non-lead hollow point bullet comprising:

a mixed construction slug further comprising,

a monolithic metal insert having a hollow point tip and a tail protrusion,

an unsintered powdered metal composite core in tandem alignment with said insert, said core having a hollow cavity tip portion coupled with said tail protrusion,

a jacket having an open tip and enveloping at least a portion of said insert and said core, said jacket swaged at said open tip.

2. A bullet according to claim 1 wherein said insert comprises tin.

3. A bullet according to claim 1 wherein said unsintered powdered metal composite core comprises tungsten and tin.

4. A bullet according to claim 1 wherein said jacket is a copper alloy.

5. A bullet according to claim 1 wherein said insert consists essentially of 40 grain monolithic tin, said core consists essentially of 80 grain tungsten-tin composite with 75 wt % tungsten and 25 wt % tin, and said jacket consists essentially of 20 grain copper alloy.

6. A bullet according to claim 1 wherein said hollow point tip, tail protrusion, and hollow cavity tip portion is essentially tapered.

7. A bullet according to claim 1 wherein said hollow point tip, tail protrusion, and hollow cavity tip portion is essentially conical.