RU2212627C1 - Pistol cartridge - Google Patents

Abstract

FIELD: pistols (revolvers), sporting ones inclusive. SUBSTANCE: the cartridge has a case, percussion primer, propellant charge and a bullet having an envelope open from the front, and a slug with a cavity in its front section located in the envelope, the slug is made in the form of a cone, whose vertex is directed towards the case bottom, and the front end of the envelope is bent along the slug envelope, the length of the cartridge and bullet makes up respectively (2.62-3.30)d and (1.24-1.90)d, the length of the bullet head section equals (0.70-1.17)d, the diameter of the bullet front end makes up (0.30-0.60)d, and the bullet is installed in the case to length (0.43-0.73)d, where d - the cartridge caliber. EFFECT: enhanced penetrating power of the bullet at enhanced ranges of fire at life target with an increased destruction effect. 1 dwg

Description

 The invention relates to cartridges for firing mainly from pistols (revolvers), including sports.

 Cartridges are known according to [1], [2], [3] with bullet-free, shell and semi-shell bullets. Some of the known designs of cartridges have bullets with a cut of the shell in the head, while the core protrudes or does not protrude above the cut of the shell. Their disadvantage is the relatively small range of reliable target destruction [4, p. 88 ... 90], which is required to be increased in connection with the shooting abroad of relatively small rodents (including rabbits) from pistols (revolvers) that has become widespread abroad.

 The cartridge according to [3], selected as a prototype, contains a sleeve, an igniter capsule, a propellant charge and a bullet having a shell with a slice in the head and a core with a cavity at the slice placed in it, while the surface of the shell slice is perpendicular to the axis of the cartridge, the cavity in the core is made in the form of a cylinder with a conical bottom, longitudinal grooves are located on the outer surface of the head part from the cut.

 The disadvantages of this design include the accuracy of firing that does not meet the requirements and the increased size of the outlet of the wound channel when it hits the target, which together leads to insufficient penetrating action at increased firing ranges for live targets.

 The objective of the present invention is to increase the penetrating action of a bullet at increased firing ranges at live targets with an increase in the nature of the lesion.

 The problem is solved due to the fact that in a cartridge containing a sleeve, an igniter capsule, a propellant charge and a bullet having a shell open in front and a core placed in it with a cavity in its front part, the cavity in the core is made in the form of a cone, apex which is directed towards the bottom of the sleeve, and the front end of the shell is bent along the core cavity, while the lengths of the cartridge, bullet and bullet head are equal to 2.62-3.30; 1.24-1.90 and 0.70-1.17 caliber cartridge; the diameter of the front end of the bullet is 0.30-0.60 caliber cartridge, and the installation length of the bullet in the sleeve is 0.43-0.73 caliber nitron. The invention is illustrated in the drawing, which shows a General view of the cartridge.

 The cartridge contains a sleeve (1), a propelling charge (2) placed inside the sleeve, a primer (3) firmly inserted in the center of the bottom of the sleeve, and a bullet (4) installed in the sleeve. The bullet has a shell (5) and a core (6) and is made with the head, leading and tail parts.

 In the head part of the bullet, the shell is open with the formation of an opening through which a core, pressed into the shell, is paid, which is visible. The core in its front part has a cavity in the form of a straight round cone with a vertex directed towards the bottom of the sleeve, while the front end of the shell is bent with support on the walls of the cavity and directed along its walls.

 A cavity of the indicated shape in the core, together with a bent front end of the shell, allows additional mounting of the core with a punch for tight compression of lead (core material) to the limit state along the entire length of the core in the mounted pool placed in the matrix, which ultimately reduces the bullet dispersion cross section by flight paths in a group of shots due to more stable dynamic characteristics of bullets, i.e. increases the accuracy of fire, and therefore increases the accuracy of the shot and the likelihood of reliable destruction of a live target at a greater range. In addition, the bent front end of the shell, resting on the walls of the core cavity, increases the rigidity of the shell structure in the bullet head, which reduces the deformation of the bullet head in the diametrical direction when it hits a live target, and, as a result, reduces the diameter of the exit hole in the affected target and the result increases the depth of penetration of the bullet in the target tissues.

The following values of the parameters of the cartridge are declared.
cartridge length L = (2.62-3.30) d;
bullet length L ₁ = (1.24-1.90) d;
the length of the bullet head L ₂ = (0.70-1.17) d;
the diameter of the front end of the bullet d ₁ = (0.30-0.60) d;
the bullet is installed in the sleeve for a length L ₃ = (0.43-0.73) d,
where d is the caliber of the cartridge.

 The parameters of the cartridge of the proposed design, as shown by experiments, are necessary and sufficient to achieve the task.

Ta, at L <2.26d; L ₁ <1.24d; L ₂ <0.70d; L ₃ <0,43d and d ₁ > 0,60d in the cartridge there are disadvantages inherent in the prototype. In addition, when L ₃ <0.43d, the force to extract the bullet from the sleeve is less than the established norm. When d ₁ > 0.30 d, the effect of an empty cavity at the front end of the bullet head disappears.

For L>3.30d; L ₁ >1.90d; L ₂ > 1.17d and L ₃ > 0.73d the mass of the bullet increases to a value (depending on the caliber), at which a number of parameters of the shot becomes unacceptable for practical application according to the results of ballistic design, for example, such as the combustibility of a certain mass of propellant in the barrel with the installed barrel length and the required initial velocity of the bullet; recoil when fired; the mass of the weapon due to the dependence of the dimensions of the weapon on the dimensions of the cartridge.

 When firing a cartridge and hitting the target by increasing the penetrating action of the bullet due to reduced deformation in the diametrical direction of its head, with increased accuracy of the shot due to improved accuracy of fire at an increased range, the nature of the lesion is strengthened.

 The proposed cartridge expands the range of analog cartridges and increases the ability to select the necessary and suitable cartridge for the planned type of shooting.

Sources of information
1. The state cadastre of civil service weapons and ammunition. - M .: Gosstandart, 2000 (with addition), - UDC 623.44.

 2. Standing International Commission for the Testing of Handguns. Charts of sizes of cartridges and chamber for hunting, sports, defensive trade weapons and for mounting devices for industrial purposes. - M.: Gosstandart.

 3. The catalog of the company "Winchester", 1996, p. 43 (prototype).

 4. Kirillov V. M., Sabelnikov V. M. "Cartridges of small arms." M .: 1980

Claims (1)

 A pistol cartridge containing a sleeve, an igniter capsule, a propellant charge and a bullet having a shell open in front and a core placed therein with a cavity in its front part, characterized in that the cavity in the core is made in the form of a cone, the apex of which is directed to the side the bottom of the sleeve, and the front end of the shell is bent along the core cavity, while the length of the cartridge and the bullet are, respectively, (2.62 ÷ 3.30) d and (1.24 ÷ 1.90) d, the length of the bullet head is ( 0.70 ÷ 1.17) d, the diameter of the front end of the bullet is (0.30 ÷ 0.60) d and the bullet is set on the sleeve to a length of (0.43 ÷ 0.73) d, where d is the caliber of the cartridge.