US 12,072,172 B2
Method for creating precision rifle ammunition with more uniform external ballistic performance and enhanced terminal ballistic performance
G. David Tubb, Canadian, TX (US)
Assigned to SUPERIOR SHOOTING SYSTEMS, INC, Canadian, TX (US)
Filed by SUPERIOR SHOOTING SYSTEMS, INC, Canadian, TX (US)
Filed on Jul. 14, 2023, as Appl. No. 18/221,982.
Application 17/892,892 is a division of application No. 16/726,674, filed on Dec. 24, 2019, granted, now 11,421,967.
Application 18/221,982 is a continuation of application No. 17/892,892, filed on Aug. 22, 2022, granted, now 11,815,342.
Application 16/726,674 is a continuation of application No. PCT/US2018/039602, filed on Jun. 26, 2018.
Claims priority of provisional application 62/525,185, filed on Jun. 26, 2017.
Prior Publication US 2023/0375314 A1, Nov. 23, 2023
Int. Cl. F42B 5/02 (2006.01); F42B 10/44 (2006.01); F42B 10/46 (2006.01); F42B 12/74 (2006.01); F42B 12/76 (2006.01)
CPC F42B 5/025 (2013.01) [F42B 10/44 (2013.01); F42B 10/46 (2013.01); F42B 12/74 (2013.01); F42B 12/76 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for making an enhanced projectile, comprising:
providing a monolithic solid projectile body having a central axis, a distal end, a proximal end, and an overall length extending between the distal and proximal ends along the central axis, the projectile body comprising:
a distal first section that terminates at the distal end, the distal first section having an ogive surface;
a bearing second section; and
a proximal third section terminating at the proximal end and aligned with the distal first section and the bearing second section along the central axis so that the distal first section, the bearing second section, and the proximal third section are substantially symmetrical about the central axis; and
forming a surface discontinuity defining feature in the ogive surface of the distal first section of the projectile body, the surface discontinuity defining feature comprising a continuous groove.