Tipped projectiles

• US 9,052,174 B2
• Filed: 08/27/2008
• Issued: 06/09/2015
• Est. Priority Date: 08/31/2007
• Status: Active Grant

• Current Assignee: Ammunition Operations, LLC (Vista Outdoor Inc.)
• Original Assignee: RA Brands LLC (RA Factors, Inc.)
• Inventors: Dennison, Gregory A.
• Primary Examiner(s): Hayes, Bret C.
• Application Number:
  US12/199,306
• Publication Number:
  US 20120216700A1
• Time in Patent Office: 2,477 Days
• Field of Search: 102/507, 102/509, 102/521, 244/3.1
• US Class Current: 1/1
• CPC Class Codes: F42B 10/02 Stabilising arrangements
• CPC Class Codes: F42B 10/42 Streamlined projectiles
• CPC Class Codes: F42B 10/46 Streamlined nose cones; Windshields; Radomes F42B12/105 takes precedence

Abstract

A projectile is provided with a projectile tip having enhanced aerodynamic properties to improve accuracy of the projectile. The tip has a body having a base or lower end, an upper end and a curved, side wall between its upper and lower ends that defines an ogive tip length. The tip is received with a projectile jacket and also can have a series of aerodynamic features formed in its body to modify air flow about the body of the projectile in flight.

Claims

1. A projectile for a round of ammunition, comprising:

a projectile body; and

a tip formed from a material of a lighter weight than a material from which the projectile body is formed and having a base at least partially received within an upper end of the projectile body, a generally pointed front end, a tip body defining a tip ogival portion, and a series of aerodynamic features formed at selected locations about the tip ogival portion and spaced rearwardly from the front end of the tip to adjust a location of a center of pressure of the projectile body with respect to a center of gravity of the projectile body to enhance stability of the projectile body during flight from a firearm; and

wherein an ogive tip length is defined between the upper end of the projectile body and the front end of the tip, and

wherein the tip and the projectile body are nonreleaseably connected.

2. The projectile of claim 1 and wherein the aerodynamic features comprise a series of ports arranged in spaced series about the tip body.

3. The projectile of claim 2 and wherein the ports include at least 2 ports extending from an opening adjacent the front end of the tip inwardly along the tip body and into an interior chamber within the tip body.

4. The projectile of claim 1 and wherein the aerodynamic features comprise slots, cuts, notches or openings formed in spaced series about the tip body.

5. The projectile of claim 1 and wherein the tip comprises a plastic, synthetic or a metal material.

6. The projectile of claim 1 and further comprising a core formed from a metal material received within the projectile body.

7. The projectile of claim 1 and wherein the ogive tip length is greater than ½

of an ogive axial length defined along a longitudinal axis for the projectile between the base and the front end of the tip.

8. The projectile of claim 1 and wherein the projectile body is formed from a metal or metal alloy material.

9. The projectile of claim 8 and wherein the metal or metal alloy material of the projectile body comprises copper, brass, lead or bismuth.

10. The projectile of claim 1 and wherein said tip has a tip length of about 0.4 to about 0.6 inches and the projectile has an overall length of about 0.75-1.5 inches.

11. The projectile of claim 1 and further comprising a plurality of spiral cuts formed about the upper end of the projectile body for attaching the tip body to the projectile body.