Patent ID: 9389052
Filing Date: 2016-07-12
CPC Classification: F41A,F42B

Claim Text:
1. A bore resistance modification method which comprises: forming a bullet from a slug having an outer surface, a penetrator also having an outer surface said penetrator being axially aligned to said slug, and a metal jacket disposed around the majority of said outer surface of said slug and said penetrator, disposing a plurality of helical flutes placed in an equidistant pattern longitudinally extending upon said outer surface of said slug and said penetrator, rifling the inside surface of a gun barrel to have an identical helical flute pattern of that of said slug and said penetrator so as to match that of said slug and said penetrator and said gun barrel being formed to a depth so as to engage the flutes of said slug and said penetrator through deformation of the metal jacket as caused by the gun barrel rifling, firing said bullet from said gun barrel, whereby said metal jacket is deformed and pressed into the flutes of said slug and said penetrator in order to reduce the friction between said bullet and said gun barrel while said bullet traverses said gun barrel.