Solid bullet, intermediate product for manufacturing a solid bullet, and method for producing a solid bullet

Abstract

The present invention relates to a solid projectile for ammunition in particular with a caliber of less than 13 mm, wherein the solid projectile is made of iron, in particular soft iron, with a carbon content of more than 0.05%.

1 . Solid projectile ( 1 ) for ammunition in particular with a caliber of less than 13 mm, wherein the solid projectile ( 1 ) is made of iron, in particular soft iron, with a carbon content of more than 0.05%. 
     
     
         2 . Solid projectile ( 1 ) according to  claim 1 , wherein the carbon content is in the range of 0.06% to 1.14%, in particular in the range of 0.08% to 0.12%. 
     
     
         3 . Solid projectile ( 1 ) according to  claim 1 , wherein the solid projectile ( 1 ) is made of a material that, in addition to iron, comprises at least one further transition metal, for example selected from the group comprising manganese and copper, in particular with a mass portion of 0.01% to 1.2% or of 0.3% to 1%. 
     
     
         4 . Solid projectile ( 1 ) according to  claim 1 , wherein the iron of the solid projectile ( 1 ) comprises at least one additive selected from the carbon group, the nitrogen group and/or the oxygen group, wherein in particular the at least one additive is a metalloid, in particular silicon, and/or has a weight percentage of at least 0.01% to at most 0.48%. 
     
     
         5 . Solid projectile ( 1 ) according to  claim 1 , wherein the iron has a manganese content of 0.01% to 0.8%, in particular of 0.03% to 0.6%. 
     
     
         6 . Solid projectile ( 1 ) according to  claim 1 , wherein the iron has a silicon content of less than 0.5%, in particular less than 0.4% or less than 0.3%. 
     
     
         7 . Solid projectile ( 1 ) according to  claim 1 , wherein the iron has a phosphorus content in the range from 0.01% to 0.04%, in particular in the range from 0.02% to 0.03%. 
     
     
         8 . Solid projectile ( 1 ) according to  claim 1 , wherein the iron has a sulfur content in the range from 0.01% to 0.04%, in particular in the range from 0.02% to 0.03%. 
     
     
         9 . Solid projectile ( 1 ) according to  claim 1 , wherein the iron has a copper content of less than 0.4%, in particular less than 0.3% or less than 0.25%. 
     
     
         10 . Solid projectile ( 1 ), according to  claim 1 , for ammunition in particular with a caliber of less than 13 mm, made of iron, comprising an particularly ogive-like projectile nose ( 3 ), an at least sectionally cylindrical driving band ( 5 ) adjoining thereto for guiding the solid projectile ( 1 ) in a firearm barrel ( 15 ), in particular for engaging in grooves of a land-groove profile of a firearm barrel ( 15 ), and a projectile tail ( 7 ) adjoining to the driving band ( 5 ), the projectile tail ( 7 ) comprising a bottom and a projectile base that opens into the bottom and tapers at least sectionally concavely in the direction of the bottom. 
     
     
         11 . Solid projectile ( 1 ) according to  claim 10 , wherein a radius of curvature defining an outer contour of the projectile base is in the range of 0.1 times to 0.5 times a maximum projectile outer diameter. 
     
     
         12 . Solid projectile ( 1 ) according to  claim 10 , wherein the at least sectionally concave projectile base extends in longitudinal direction of the solid projectile ( 1 ) by 0.2 times to 0.6 times a maximum projectile outer diameter. 
     
     
         13 . Solid projectile ( 1 ) according to  claim 10 , wherein the bottom comprises an outer diameter in the range of 0.6 times to 0.9 times a maximum projectile outer diameter. 
     
     
         14 . Solid projectile ( 1 ), according to  claim 1 , for ammunition in particular with a caliber of less than 13 mm, made of iron, comprising an particularly ogive-like projectile nose ( 3 ), an at least sectionally cylindrical driving band ( 5 ) adjoining thereto for guiding the solid projectile ( 1 ) in a firearm barrel ( 15 ), in particular for engaging in grooves of a land-groove profile of a firearm barrel ( 15 ), and a projectile tail ( 7 ) adjoining to the driving band ( 5 ), wherein a transition from the projectile tail ( 7 ) into the driving band ( 5 ) is formed by an outer contour projection, at which an outer diameter of the solid projectile ( 1 ) increases continuously or abruptly. 
     
     
         15 . Solid projectile ( 1 ) according to  claim 14 , wherein the outer contour projection has an inclination angle with respect to a projectile longitudinal axis oriented in longitudinal direction of the solid projectile ( 1 ) in the range from 100 to 90°. 
     
     
         16 . Solid projectile ( 1 ), according to  claim 1 , for ammunition in particular with a caliber of less than 13 mm, made of iron, comprising an particularly ogive-like projectile nose ( 3 ), an at least sectionally cylindrical driving band ( 5 ) adjoining thereto for guiding the solid projectile ( 1 ) in a firearm barrel ( 15 ), in particular for engaging in grooves of a land-groove profile of a firearm barrel ( 15 ), and a projectile tail ( 7 ) adjoining to the driving band ( 5 ), wherein a transition from the driving band ( 5 ) into the projectile nose ( 3 ) is formed by an outer contour recess, at which an outer diameter of the solid projectile ( 1 ) decreases continuously or abruptly. 
     
     
         17 . Solid projectile ( 1 ) according to  claim 16 , wherein the outer contour recess has an inclination angle with respect to a projectile longitudinal axis oriented in longitudinal direction of the solid projectile ( 1 ) in the range from 10° to 90°. 
     
     
         18 . Solid projectile ( 1 ) according to  claim 14 , wherein the outer contour projection and/or the outer contour recess has a radial depth, dimensioned transversely to the projectile longitudinal axis, of less than 0.5 mm, in particular less than 0.4 mm, 0.3 mm or 0.2 mm. 
     
     
         19 . Solid projectile ( 1 ), according to  claim 1 , for ammunition in particular with a caliber of less than 13 mm, made of iron, comprising a particularly ogive-like projectile nose ( 3 ), an at least sectionally cylindrical driving band ( 5 ) adjoining thereto for guiding the solid projectile ( 1 ) in a firearm barrel ( 15 ), in particular for engaging in grooves of a land-groove profile of a firearm barrel ( 15 ), having an axial length, dimensioned in longitudinal direction of the solid projectile ( 1 ), in the range of 10 times to 100 times a land-groove profile difference of a firearm barrel ( 15 ). 
     
     
         20 . Solid projectile ( 1 ), according to  claim 1 , for ammunition in particular with a caliber of less than 13 mm, made of iron, comprising a particularly ogive-like projectile nose ( 3 ), having a substantially planar end face, in particular produced by cutting to length, oriented in the direction of the projectile longitudinal axis. 
     
     
         21 . Solid projectile ( 1 ), according to  claim 1 , for ammunition in particular with a caliber of less than 13 mm, made of iron, comprising an at least sectionally cylindrical driving band ( 5 ) for guiding the solid projectile ( 1 ) in a firearm barrel ( 15 ), in particular for engaging in grooves of a land-groove profile of a firearm barrel ( 15 ), wherein a Vickers hardness in the region of a driving band outer diameter is at most 150 HV. 
     
     
         22 . Solid projectile ( 1 ) according to  claim 21 , wherein a Vickers hardness in the region of a driving band outer diameter is less than 10%, in particular less than 5% or less than 3%, larger than a Vickers hardness in the region of a projectile center at the same height with respect to a projectile longitudinal axis. 
     
     
         23 . Intermediate ( 100 ) for producing a solid projectile ( 1 ) according to  claim 1 , consisting of a pre-press body made of iron with a substantially cylindrical tail section ( 103 ) and an adjoining concavely tapering front section ( 105 ), in particular produced by forming, in particular cold forming, such as pressing. 
     
     
         24 . Method for producing an intermediate ( 100 ) according to  claim 1  for producing a solid projectile ( 1 ), in particular for producing a solid projectile ( 1 ) according to  claim 1 , in which a cylindrical iron blank ( 200 ) is provided and the iron blank ( 200 ) is in a front section ( 105 ) shaped, in particular by forming, in particular cold forming, in particular pressing, into a concavely tapering shape, wherein in particular the concave front section ( 105 ) is shaped by forming, in particular cold forming, in particular pressing, into an ogive shape, and adjoining to the front section ( 105 ) an at least sectionally cylindrical driving band ( 5 ) for guiding the solid projectile ( 1 ) in a firearm barrel ( 15 ) is shaped, in particular by forming, in particular cold forming, in particular pressing, and possibly an projectile tail ( 7 ) adjoining to the driving band ( 5 ) with a constant or at least sectionally continuously tapering outer diameter is shaped, in particular by forming, in particular cold forming, in particular pressing. 
     
     
         25 . Method according to  claim 24 , wherein the solid projectile ( 1 ) is produced, in particular by forming, in such a way that the iron blank ( 200 ) is shortened by less than 20%, in particular less than 15%, and/or a diameter of the iron blank increases at most 25%, in particular at most 20%, and/or a Vickers hardness in the region of a driving band outer diameter increases less than 15%, in particular less than 10%.