Projectile for ammunition

Abstract

A projectile for ammunition, such as a bullet for ammunition, may have a caliber of at most 13 mm. The projectile may include a bullet core made of iron and a surface coating. The surface coating may from an outer skin of the bullet at least sectionally and/or having a thickness of more than 1 μm and less than 50 μm.

1 . A bullet for ammunition, comprising:
 a bullet body of iron; and   a surface coating forming an outer skin of the bullet at least sectionally and having a thickness of more than 1 μm and less than 50 μm.   
     
     
         2 . The bullet according to  claim 1 , wherein the surface coating has a thickness of at least 6.5 μm and no more than 8.5 μm. 
     
     
         3 . The bullet according to  claim 1 , wherein: the bullet body is completely coated with the surface coating, and/or the surface coating has a varying layer thickness. 
     
     
         4 . The bullet according to  claim 1 , wherein the surface coating includes a Cr(VI)-free galvanic layer, and/or is formed of metal of the group consisting of tin, zinc, nickel, cadmium, cobalt, and alloys thereof. 
     
     
         5 . The bullet according to  claim 1 , wherein the surface coating has a hardness in a range from 40 HV to 100 HV. 
     
     
         6 . The bullet according to  claim 1 , wherein the surface coating comprises at least one zinc alloy with at least one iron alloy component and/or nickel alloy component. 
     
     
         7 . The bullet according to  claim 1 , wherein the surface coating and/or the bullet body are free of lead, copper and/or chromium. 
     
     
         8 . The bullet according to  claim 1 , wherein the bullet body comprises iron and additionally at least one further transition metal, to a mass proportion of 0.3% to 1%. 
     
     
         9 . The bullet according to  claim 1 , wherein the iron of the bullet body comprises at least one additive selected from the carbon group, the nitrogen group and/or the oxygen group, the at least one additive being a semimetal and/or having a weight percentage of at least 0.01% and/or at most 0.5. 
     
     
         10 . The bullet according to  claim 1 , wherein the iron of the bullet body has a copper content of less than 0.4%. 
     
     
         11 . The bullet according to  claim 1 , wherein the surface coating comprises a mineral and/or plastic. 
     
     
         12 . The bullet according to  claim 1 , wherein the surface coating comprises: at least two layers of a base layer adjacent a bullet body surface, and an outer layer, wherein:
 (a) the base layer has a stronger adhesion effect with steel than the outer layer and/or the outer layer is more anti-corrosive than the base layer, and   (b) the base layer comprises copper and the outer layer comprises tin or zinc.   
     
     
         13 . The bullet according to  claim 1 , wherein the surface coating comprises a sealant on an outer side, the sealant comprises an organic oil, and/or an inorganic silicon-based sealant dissolved in water. 
     
     
         14 . The bullet according to  claim 1 , wherein the surface coating comprises a material whose melting point is greater than 250° C. 
     
     
         15 . A bullet for ammunition, comprising:
 an ogive-like bullet front,   a cylindrical guide band adjoining the bullet front in a longitudinal direction of the bullet and configured to engage in a land-and-groove profile of a barrel of a handgun, and   a bullet tail adjoining the adjoining the guide band in the longitudinal direction of the bullet, a jacket surface of the bullet tail being structured at least sectionally such that a press-through resistance of the bullet tail with respect to the barrel is smaller than that of the guide band.   
     
     
         16 . The bullet according to  claim 15 , wherein the jacket surface comprises a projection-recess-sequence structure. 
     
     
         17 . The bullet according to  claim 15 , wherein the jacket surface comprises a circumferential projection-recess-sequence of at least two projections and recesses, the recesses have a depth of at least 0.01 mm and/or of at most 1 mm. 
     
     
         18 . The bullet according to  claim 15 , wherein a bullet body comprises, at least sectionally, a structure configured to increase an adhesion base for the surface coating. 
     
     
         19 . The bullet according to  claim 18 , wherein the bullet body is realized by the jacket surface having a projection-recess-sequence, the recesses being at least 50% covered with the surface coating. 
     
     
         20 . An ammunition, comprising;
 an ammunition case; and   a bullet according to  claim 1 , arranged therein, wherein the ammunition has a caliber of less than 13 mm.   
     
     
         21 . A method of manufacturing a bullet for ammunition, comprising:
 forming a bullet body from iron; and   coating, at least sectionally, the bullet body with a surface coating having a thickness of more than 1 μm and less than 50 μm to form an outer skin of the bullet.   
     
     
         22 . The method according to  claim 21 , wherein the surface coating is galvanically applied or is manufactured by sputtering.