Rotating, explosive sub-calibrated projectile

Abstract

A projectile ( 1 ) is composed of a body divided into a front part ( 2 ) and a rear part ( 3 ), the latter being hollow. An axial rod ( 4 ) is embedded and fixed in the front part under pressure. The axial rod ( 4 ) terminates in a hard tip ( 6 ), which is located towards the front, and which is conical in shape and terminates in the form of a cap ( 7 ). The tip ( 6 ) closes the front end of an air chamber ( 5 ) positioned axially in the front part ( 2 ) of the body ( 1 ) of the projectile. Upon impact, the tip ( 6 ) is displaced towards the inside of the chamber ( 5 ), which causes it to be compressed, thus converting the projectile ( 1 ) into pellets. The body of the projectile ( 1 ) is cylindrical and has helicoidal external grooves. The body is made of lead with high antimony content. The projectile is arranged within a container, which retains it and acts additionally as a shock-absorbing element and stopper for the gases generated upon firing.

1 . A rotating, compressed air-explosive, sub-calibrated projectile, formed as a single body that is 31 mm high by 15 mm diameter, said single body having two cavities, one cavity being formed in an upper part and being 7 mm diameter by 12 mm high and forming an explosion cavity, and the other cavity being formed in a lower part of the projectile and being 9.5 mm diameter by 11 mm high, to lighten the weight and avoid pitching which endangers the projectile's trajectory when it is shot.  
   
   
       2 . The sub-calibrated projectile for guns, according to  claim 1 , wherein the projectile has longitudinally engraved on its periphery, in a plane inclined by 5 degrees, twelve helicoidal ribs intended to incide in the air layers when shot, wherein the projectile is rotatable at 3000 rpm which stabilizes it in flight and partly, excepting the attraction to earth, achieving a scope of double to triple that of all known gun bullets.  
   
   
       3 . The sub-calibrated projectile for guns, according to  claim 1 , further comprising a steel rod-fuse axially running through the body of the projectile which, in its front part, has a 9.5 mm diameter truncated-cone at its base and is 4 mm high, said front part acting as a fuse and covering the explosion chamber such that, when shot and on impact, air in the explosion chamber is pressurized thereby pressurizing the air causing said projectile to explode.  
   
   
       4 . The sub-calibrated projectile according to  claim 1 , wherein the other cavity is filled with cork.  
   
   
       5 . A subcalibrated projectile for a shotgun, said projectile comprising: 
 a single projectile body having a forward section defining an air chamber, and a rear section defining a rear chamber, wherein said forward section has an annular step formed on an exterior peripheral surface; and    an axial rod fixed under pressure in said projectile body so as to extend through and close said air chamber, said rod terminating in a tip positioned at the forward end of said projectile body,    wherein said tip has a conical surface that is engaged with the forward end of said projectile body, and a convex external peripheral surface,    wherein, upon impact, the air chamber is compressed by the tip of said rod.    
   
   
       6 . The subcalibrated projectile as claimed in  claim 5 , wherein said projectile body has a plurality of helicoidal grooves formed in an outer surface of said projectile body.  
   
   
       7 . The subcalibrated projectile as claimed in  claim 6 , further comprising a filler material provided in the rear chamber of said rear section, wherein a rear portion of said rod extends through the filler material and a terminal end of said rear portion of said rod is fixed to said projectile body by means of a pressurized nut.  
   
   
       8 . The subcalibrated projectile as claimed in  claim 7 , wherein said filler material comprises a high-pressure polythene.  
   
   
       9 . A subcalibrated projectile for a shotgun, said projectile comprising: 
 a single projectile body having a forward section defining an air chamber, a hollow rear section, and a plurality of helicoidal grooves formed on an outer surface of said projectile body, wherein said forward section has an annular step formed on an exterior peripheral surface; and    a rod axially fixed under pressure in said projectile body so as to extend through and close said air chamber, said rod terminating in a tip positioned at the forward terminal end of said projectile body, wherein said tip has a conical exterior surface, and a flat base supported on a complementary surface at the forward terminal end of said projectile body,    wherein upon impact, the air chamber is compressed by the tip of said steel rod to transform said projectile body into pellets.    
   
   
       10 . The combination as claimed in  claim 9 , wherein said projectile body has a plurality of helicoidal grooves formed in an outer surface of said projectile body.