IP Library › Granted Patent US 9,857,155
Granted Patent B2
US 9,857,155 · App. 14/867,941 · Granted Jan 2, 2018

Rifle bullet

Inventor: James Allen Boatright (Gassville, AR)
Assignee: James Allen Boatright
F42B12/02F42B14/02
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Quick Facts
Patent No.
US 9,857,155
App. No.
14/867,941
Granted
Jan 2, 2018
Kind
B2
Abstract

The present specification discloses a new self-aligning rifle bullet. The resulting bullet offers greatly improved rifle accuracy and reduction in aerodynamic drag for better long range shooting. The resulting improvements will help shooters achieve longer ranges, higher scores, smaller group sizes, and higher probabilities of first shot hits.

Claims (34)

1. A bullet comprising:

a proximal tip;

a meplat situated at the proximal tip;

a secant ogive nose distal to the meplat;

an ogive base;

a foreshank distal to the ogive base;

a conical ramp distal to the foreshank;

a rear driving band distal to the conical ramp, wherein the rear driving band defines an at least one internal relief groove;

a boat tail distal to the rear driving band, wherein the boat tail defines a rear base cavity;

a tapered ramp forming an entrance to the rear base cavity; and

a distal base.

2. The bullet of claim 1 , wherein the bullet is constructed from a monolithic brass alloy.

3. A bullet comprising:

a proximal tip;

a meplat situated at the proximal tip;

a secant ogive nose distal to the proximal tip;

a foreshank distal to the secant ogive nose;

a conical ramp distal to the foreshank, wherein the conical ramp has an incline angle of 7.0-8.0 degrees;

a rear driving band distal to the conical ramp, wherein the rear driving band defines an at least one internal relief groove;

a boat tail distal to the rear driving band, wherein the boat defines a rear base cavity, and wherein the boat tail has an incline angle of 7.0-8.0 degrees;

a tapered ramp forming an entrance to the rear base cavity; and

a distal base.

4. The bullet of claim 3 , wherein the bullet is constructed from a monolithic brass alloy.

5. A bullet comprising:

a proximal tip;

a meplat situated at the proximal tip;

a secant ogive nose distal to the proximal tip;

a foreshank distal to the secant ogive nose;

a conical ramp distal to the foreshank, wherein the conical ramp has an incline angle of 7.0-8.0 degrees;

a rear driving band distal to the conical ramp, wherein the rear driving band defines an at least one internal relief groove;

a boat tail distal to the rear driving band, wherein the boat tail defines a rear base cavity, and wherein the boat tail has an incline angle of 7.0-8.0 degrees and the rear base cavity defines a space for seating a core material;

a tapered ramp forming an entrance to the rear base cavity; and

a distal base.

6. The bullet of claim 5 , wherein the core material is comprised of a lead or polymer material.

Continuity (1)
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