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Bullet or Projectile With Spiral Grooves

Inactive Publication Date: 2015-12-10
SCHNABEL ROBERT PETER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a new design for a bullet or projectile that includes spiral grooves. These grooves increase the stability and velocity of the bullet. This means that less gunpowder can be used to achieve the same speed and distance, resulting in cost savings for the manufacturer and better performance for the customer. The grooves also help the bullet maintain stability by reducing drag, resulting in a straighter bullet trajectory and greater energy delivered at impact.

Problems solved by technology

The conventional bullet design with a smooth surface also has limited ballistics based on current smooth surface with no spiral grooves on the surface of the bullet other than what is imparted from the rifling in the barrel.

Method used

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  • Bullet or Projectile With Spiral Grooves
  • Bullet or Projectile With Spiral Grooves
  • Bullet or Projectile With Spiral Grooves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015]A bullet is generally designed with a nose A, ogive E, bore rider B, driving band C and boat tail D, but some designs may not include all of the features or may include additional features. The groove depth, width, and angle can vary depending on the bullet caliber, load, and desired performance. The groove depth and width may also very along the surface of the bullet. For example, the start of the ogive at the nose may have a very minimal groove depth, but as the spiral groove moves along the ogive the groove could get deeper, wider and the angle of the groove could change.

[0016]The grooves could be machined efficiently in an existing bullet with a CNC milling machine or a CNC lathe while utilizing the appropriate tooling to cut the groove. The bullets could also be cast in a mold which contains the grooves, so upon ejection from the mold the bullet is a finished product. The grooves could also be imparted during the forming process of a FMJ bullet or in a injection molding p...

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Abstract

A bullet or projectile having surface geometry in the form of a spiral or partial spiral groove. The spiral can be formed, cast or machined and very in depth, angle, and width. The spiral may go from the nose to the end of the bullet in one continual grove or the spiral may be focused on certain, areas of the bullet. The bullet may consist of any material capable of being formed, cast or machined and be of any caliber.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Not ApplicableSTATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not ApplicableREFERENCE TO SEQUENCE LISTING, A TABLE OR A COMPUTER PROGRAM LISTING COMPACT DISC APPENDIX[0003]Not ApplicableBACKGROUND OF THE INVENTION[0004]The present invention relates to bullets or projectiles, more specifically bullets with spiral or partial spiral grooves on the surface of the bullet. Conventional bullet designs consist of a basically smooth surface. The smooth surface relies on the rifling in the firearm barrel to impart spin on the bullet to obtain its gyroscopic stability. The conventional bullet design with a smooth surface also has limited ballistics based on current smooth surface with no spiral grooves on the surface of the bullet other than what is imparted from the rifling in the barrel.BRIEF SUMMARY OF THE INVENTION[0005]The present invention is a unique bullet or projectile design in which the spiral grooves on the bullet ca...

Claims

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Application Information

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IPC IPC(8): F42B30/02
CPCF42B30/02F42B10/24
Inventor SCHNABEL, ROBERT PETER
Owner SCHNABEL ROBERT PETER
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