Bullet

Abstract

A bullet, which has a bullet nose, a receipt cavity located in the bullet nose and open towards the base of the bullet nose, and a piercing pin at least partially inserted into the receipt cavity of the bullet nose, where the piercing pin has a nose part and a body part forming a continuation of it, and the bullet nose and the piercing pin are connected to each other, where the head part of the bullet nose has a conical shell shaped covering surface with an apex angle of 80-100°, while the inner end of the receipt cavity towards the head part of the bullet nose has a concave conical shell shaped delimiting surface with an apex angle of 45-100° viewed from the receipt cavity.

1 . Bullet, which has a bullet nose ( 10 ), a receipt cavity ( 13 ) located in the bullet nose ( 10 ) and open towards the base ( 14 ) of the bullet nose ( 10 ), and a piercing pin ( 20 ) at least partially inserted into the receipt cavity ( 13 ) of the bullet nose ( 10 ), where the piercing pin ( 20 ) has a nose part ( 21 ) and a body part ( 22 ) forming a continuation of it, and the bullet nose ( 10 ) and the piercing pin ( 20 ) are connected to each other, characterised by that the bullet nose ( 10 ) has head part ( 12 ), and the head part ( 12 ) of the bullet nose ( 10 ) has a conical shell shaped covering surface ( 12   a ) with an apex angle (α) of 80-100°, while inner end ( 13   a ) of the receipt cavity ( 13 ) towards the head part ( 12 ) of the bullet nose ( 10 ) has a concave conical shell shaped delimiting surface ( 13   b ) with an apex angle (β) of 45-100° viewed from the receipt cavity ( 13 ), where at least one slot ( 12   c ) is formed in the delimiting surface ( 13   b ) in the direction of the covering surface ( 12   a ) of the head part ( 12 ) of the bullet nose ( 10 ) and falling in the main plane (FS) passing through the main axis ( 11 ) of the bullet nose ( 10 ), furthermore the nose part ( 21 ) of the piercing pin ( 20 ) facing the head part ( 12 ) of the bullet nose ( 10 ) is provided with a conical shell shaped nose surface ( 21   a ) with an apex angle (γ) of 30-60°, while the body part ( 22 ) of the piercing pin ( 20 ) formed as a continuation of the nose part ( 21 ) has a side shell ( 22   a ) on at least a part of it with a cross-section reducing evenly from the head part ( 12 ) of the bullet nose ( 10 ), and a connection space ( 13   d ) between the part of the receipt cavity ( 13 ) of the bullet nose ( 10 ) in the vicinity of the base ( 14 ) of the bullet nose ( 10 ) and the body part ( 22 ) of the piercing pin ( 20 ) as a continuation of the nose part ( 21 ) is at least partially filled with a unifying material ( 30 ) securing the bullet nose ( 10 ) and the piercing pin ( 20 ) together, and the bullet nose ( 10 ) and the piercing pin ( 20 ) are connected to each other using the unifying material ( 30 ). 
     
     
         2 . Bullet according to  claim 1 , characterised by that a seat ( 12   b ) coaxial with the main axis ( 11 ) of the bullet nose ( 10 ) is recessed into the apex ( 13   c ) of the conical shell shaped delimiting surface ( 13   b ) forming the inner end ( 13   a ) of the receipt cavity ( 13 ) of the bullet nose ( 10 ). 
     
     
         3 . Bullet according to  claim 1 , characterised by that the piercing pin ( 20 ) is provided with a weight-holding recess ( 24 ) opening to its rear end ( 23 ), and a mass-increasing member ( 40 ) of a density greater than the density of the piercing pin ( 20 ) is securely positioned in at least a part of the weight-holding recess ( 24 ). 
     
     
         4 . Bullet according to  claim 3 , characterised by that the introduction opening ( 25 ) of the weight-holding recess ( 24 ) of the piercing pin ( 20 ) at least partially filled with the mass-increasing member ( 40 ) located towards the rear end ( 23 ) of the piercing pin ( 20 ) is sealed with a sealing plug ( 50 ). 
     
     
         5 . Bullet according to  claim 1 , characterised by that the nose part ( 21 ) of the piercing pin ( 20 ) is provided with a reinforcing shield ( 60 ). 
     
     
         6 . Bullet according to  claim 1 , characterised by that the nose part ( 21 ) of the piercing pin ( 20 ) is hardened using heat treatment. 
     
     
         7 . Bullet according to  claim 1 , characterised by that the covering surface ( 12   a ) of the head part ( 12 ) of the bullet nose ( 10 ) is at least partly covered with a spherical shell-piece shaped cutting element ( 70 ), where a gap ( 80 ) is formed in at least a section between the internal side ( 71 ) of the cutting element ( 70 ) and the covering surface ( 12   a ) of the head part ( 12 ) of the bullet nose ( 10 ), and at least one breach ( 72 ) facilitating fragmentation of the cutting element ( 70 ) falling in the plane (S) passing through the main axis ( 11 ) of the bullet nose ( 10 ) is in the material of the cutting element ( 70 ). 
     
     
         8 . Bullet according to  claim 7 , characterised by that an opening ( 73 ) facilitating fragmentation of the cutting body ( 70 ) coaxial with the main axis ( 11 ) of the bullet nose ( 10 ) is formed in the material of the cutting element ( 70 ). 
     
     
         9 . Bullet according to  claim 1 , characterised by that it is supplemented with a capsule ( 90 ) connected to the bullet nose ( 10 ) and at least partially covering the rear end ( 23 ) of the piercing pin ( 20 ), where the capsule ( 90 ) has a protective shell ( 91 ) made of metal provided with longitudinal slits ( 91   a ), a filling insert ( 92 ) located inside the protective shell ( 91 ) and a pressure plate ( 93 ) inserted between lower plate ( 91   b ) of the protective shell ( 91 ) and the rear end ( 23 ) of the piercing pin ( 20 ). 
     
     
         10 . Bullet according to  claim 1 , characterised by that the unifying material ( 30 ) is a high-density material, e.g. a lead alloy. 
     
     
         11 . Bullet according to  claim 3 , characterised by that the mass-increasing member ( 40 ) is a high-density material, e.g. a lead alloy. 
     
     
         12 . Bullet according to  claim 1 , characterised by that a casing groove ( 12   d ) for connecting the casing ( 100 ) of the bullet ( 1 ) is formed at the end of the head part ( 12 ) towards the capsule ( 90 ).