Multipurpose projectile for use in sporting competition or armor penetration

Abstract

A type of multipurpose projectile is presented which comprises a metal core fixed within a polymer jacket, both of which are independently producible, and may be bonded together with an adhesive. Said projectile is capable of higher velocity and lower recoil than other like projectiles when properly used in a firearm. In some embodiments, said projectile also excels at penetrating armor, and in others is also desirable for use with hard sporting targets. Preferred embodiments for penetrating armor are also uniquely legal to be manufactured or imported for general use under US federal law. Said projectile may find appreciable use against modern engineered armors, against dangerous or threatening animals, in game hunting, and in sport and competition shooting, and is specifically designed to be produced with cheaper and/or more available tools relative to other jacketed projectiles.

1 . A solid and cohesive multicomponent projectile which may be used in a handgun or a long gun comprising:
 a. an independently producible voluminous polymer jacket, and   b. an independently producible metal core fixed within said polymer jacket.   
     
     
         2 . The projectile of  claim 1  in which further a quantity of adhesive between corresponding joint surfaces on the polymer jacket and metal core is utilized to bond together said core and jacket and ensure cohesion of the entire projectile during the course of ballistic flight. 
     
     
         3 . The projectile of  claim 1  in which also the composition of the metal core excludes compositions entirely (excluding the presence of traces of other substances) of one or a combination of Tungsten alloys, Steel, Iron, Brass, Bronze, Beryllium Copper, or Depleted Uranium, and in which also the weight of the polymer jacket is less than 25 percent that of the entire projectile. 
     
     
         4 . The projectile of  claim 2  in which also the composition of the metal core excludes compositions entirely (excluding the presence of traces of other substances) of one or a combination of Tungsten alloys, Steel, Iron, Brass, Bronze, Beryllium Copper, or Depleted Uranium, and in which also the weight of the polymer jacket is less than 25 percent that of the entire projectile. 
     
     
         5 . The projectile of  claim 3  in which also the metal core is specifically composed of Cobalt or a Cobalt alloy. 
     
     
         6 . The projectile of  claim 4  in which also the metal core is specifically composed of Cobalt or a Cobalt alloy. 
     
     
         7 . The projectile of  claim 3  in which also the metal core is composed of metal of sufficiently low durability as to fail to in any way deform ¼″ thick steel plate of 500 Brinell hardness on impact when fired at the plate in an otherwise usual manner. 
     
     
         8 . The projectile of  claim 4  in which also the metal core is composed of metal of sufficiently low durability as to fail to in any way deform ¼″ thick steel plate of 500 Brinell hardness on impact when fired at the plate in an otherwise usual manner. 
     
     
         9 . The projectile of  claim 1  in which also the polymer jacket is specifically composed of PEI (polyetherimide) polymer. 
     
     
         10 . The projectile of  claim 2  in which also the polymer jacket is specifically composed of PEI (polyetherimide) polymer. 
     
     
         11 . The projectile of  claim 1  in which also the polymer jacket forms a cup around the metal core so that the rear of the metal core is enclosed by the polymer jacket while the polymer jacket is open at the forward end of the projectile such to expose the tip of the metal core. 
     
     
         12 . The projectile of  claim 2  in which also the polymer jacket forms a cup around the metal core so that the rear of the metal core is enclosed by the polymer jacket while the polymer jacket is open at the forward end of the projectile such to expose the tip or forward end of the metal core. 
     
     
         13 . The projectile of  claim 1  in which also said metal core is pointed at the forward end of the projectile so to minimize general sectional area of the tip of said metal core orthogonal to the axis of general symmetry of the projectile. 
     
     
         14 . The projectile of  claim 2  in which also said metal core is pointed at the forward end of the projectile so to minimize general sectional area of the tip of said metal core orthogonal to the axis of general symmetry of the projectile. 
     
     
         15 . The projectile of  claim 1  in which also said metal core is blunt or concave toward the forward end of the projectile so to maximize general sectional area of the tip of said metal core orthogonal to the axis of general symmetry of the projectile. 
     
     
         16 . The projectile of  claim 2  in which also said metal core is blunt or concave toward the forward end of the projectile so to maximize general sectional area of the tip of said metal core orthogonal to the axis of general symmetry of the projectile. 
     
     
         17 . The projectile of  claim 11  in which also the polymer jacket ogive extends forward of the joint surface of the metal core such to produce a cavity or hollow bounded by the wall of the polymer jacket and the forward tip and/or end of the metal core such to initiate and/or augment fragmentation and/or expansion of the polymer jacket by hydrostatic shock upon impact into a dense ballistically fluid medium. 
     
     
         18 . The projectile of  claim 12  in which also the polymer jacket ogive extends forward of the joint surface of the metal core such to produce a cavity or hollow bounded by the wall of the polymer jacket and the forward tip and/or end of the metal core such to initiate and/or augment fragmentation and/or expansion of the polymer jacket by hydrostatic shock upon impact into a dense ballistically fluid medium. 
     
     
         19 . The projectile of  claim 2  in which also the quantity of adhesive is of any type of adhesive, including but not limited to, epoxy, cyanoacrylate, acrylate, methacrylate, urethane, and silicone.