.308 Subsonic Bullet

Abstract

The invention here described of novel aerodynamics and construction has been shown to alleviate the problems inherent in subsonic ballistics, such as, but not limited to, tumbling in flight, loss of impact energy, as well as the changes in both accuracy and precision of the firearm shots fired at subsonic speeds. The subsonic bullet herein described has three main aerodynamic components that aid in subsonic flight: 1) a parabolic or hemispherical nose; 2) a cylindrical center length with parallel sides; 3) a cone-like parabolic tail with an optimized tail geometry to slowly converge the laminar flow around the bullet without introducing turbulence. These features serve to reduce air pressure and turbulent airflow around the bullet during flight.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation-in-part of U.S. Non-Provisional application Ser. No. 15 / 167,251 filed on May 27, 2016, now pending, which application claims priority from U.S. Provisional Application No. 62 / 188614 filed on Jul. 3, 2015 the disclosures of which are hereby incorporated by reference in their entirety to provide continuity of disclosure.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not applicable.THE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT[0003]Not applicable.REFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER PROGRAM LISTING COMPACT DISC APPENDIX[0004]Not applicable.BACKGROUND OF THE INVENTION[0005]This invention generally relates to firearms and ammunition, and specifically to an article and method of silencing firearm shots and usage of subsonic bullets. This invention specifically relates to an exemplary embodiment of a subsonic .308 bullet, which can be utilized with standard .308 W...

AI Technical Summary

Benefits of technology

The patent is about a new subsonic bullet design that reduces drag and increases flight stability to improve accuracy. The subsonic bullet has a unique shape with a curved nose, cylindrical center, and cone-like tail that reduces turbulent airflow. It also has a copper shell filled with a low-density material in the nose and tail, which moves the center of mass as far forward as possible for further stability during flight. Additionally, the subsonic bullet is longer than supersonic bullets to increase mass and minimize voids in the powder load for better flight speeds and reduced chance of misfires.

Problems solved by technology

Meanwhile the drag force on the projectile affects its impact energy.

As noted above, the prior art does not disclose subsonic bullet dimensions, which provide for optimal flight stability and reduction of drag.

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