RU152680U1 - CARTRIDGE FOR SMOOTHING GUNS - Google Patents

Abstract

1. Cartridge for smooth-bore guns, containing a sleeve, an igniter capsule, a propellant charge, an additional part of the propellant charge separated from the main propellant charge by a diaphragm with a hole, wad and bullet shell, characterized in that the bullet shell is made of bulk powder material placed in plastic sheath. 2. The cartridge according to claim 1, characterized in that the powdered metal is used as bulk powder: iron, an iron alloy, a mixture of iron with other metals, iron compounds, barium compounds, tungsten, a mixture of tungsten with another metal, tungsten alloys and tungsten compounds. 3. The cartridge according to claim 1, characterized in that the plastic shell has a blind and open end, through which bulk powdery material is placed inside it, and is located in the cartridge sleeve with an open end towards the wad.

Description

The utility model relates to ammunition, in particular to cartridges for smoothbore guns for the needs of the Ministry of Internal Affairs and shooting at sports stands and indoor shooting ranges using a trap pool.

Known cartridge 12/70 Open Door (Sellier & Bellot, Czech Republic), which is used in regular systems smooth-bore weapons in order to destroy the locks of entrance doors of various types and their further opening. When fired by such a cartridge at the door, the possible defeat of unprotected parts of the body of the shooter by the reflected elements of the missile module is excluded. The missile module (weight 34 g) of the cartridge is made of pressed composite material (metal-polymer) and has a relatively low initial velocity of 510 m / s.

Known high-speed cartridge for smoothbore guns (RF patent No. 2 512815 "Cartridge for smoothbore guns"), which is selected for the prototype.

Known for the prototype cartridge, as claimed, contains a sleeve, a propelling charge with an additional part of the propelling charge located in the sleeve, separated from the main propelling charge by a diaphragm with a hole, wad and bullet shell. The prototype cartridge has a high velocity bullet projectile up to 580 m / s. This increases the efficiency of knocking out door locks.

The disadvantage of the prototype cartridge is the inability to use it for special tasks of the Ministry of Internal Affairs, where it is required to shoot smooth-bore guns in enclosed spaces without ricochets and knock out locks from doors that people can be behind. Another disadvantage of the prototype cartridge is the large wear of the catcher pool when it is used in closed shooting ranges and on open shooting stands during sports shooting.

The aim of the invention is to create the design of a special high-speed bullet cartridge, which can be used for special tasks of the Ministry of Internal Affairs, where it is required to shoot smooth-bore guns in enclosed spaces without rebounding and knock out locks from doors that can be used by people. And also for the possibility of its use in closed shooting ranges and on open shooting stands during sports shooting without wear of the trap pool.

This goal is achieved by the fact that the bullet shell is made:

- either from a bulk powder material placed in a plastic shell that has a blind and open end, through which powder material is placed inside it, and which is located in the cartridge sleeve with an open end towards the wad. In this case, a powdered metal was used as bulk powder material: iron, an iron alloy, a mixture of iron with other metals, iron compounds, barium compounds, tungsten, a mixture of tungsten with another metal, tungsten alloys and tungsten compounds.

In FIG. presents a General view of the claimed cartridge in the context. The cartridge consists of: a sleeve 1, a primer 2, a propellant charge 3, an additional part of the propellant charge 4, a diaphragm with a hole 5, wad 6, powder material 7 and a plastic shell 8.

The cartridge works as follows: from the impact of the shotgun, the igniter capsule of cartridge 2 fires and the propellant 3 lights up. The pressure of the powder gases released from the combustion of the propellant starts to increase. The peak values of this pressure of the powder gases are reduced due to the cushioning action (compression) of the additional part of the propellant charge 4, separated from the main propellant charge by the diaphragm with a hole 5. In addition, after a while, when the assembly: the diaphragm with a hole 5, an additional part of the propellant charge 4 , wad 6, bullet projectile - "plastic shell 8 and powder material 7" have acquired a certain speed, an additional part of the propellant charge lights up. The burning of an additional part of the propellant charge 4, the mass of which is selected experimentally, increases the speed of the bullet projectile, but no longer causes an increase in the maximum pressure of the powder gases, because the bullet projectile is already moving at a sufficiently high speed and the volume behind the bullet space in the barrel increases sharply. When passing the muzzle narrowing of the barrel of a gun and

flight bullet projectile - "plastic shell 8 and powder material 7" in the air wad 6 is separated from it. Next, the flight of the bullet projectile - "plastic shell 8 and powder material 7". in the air it occurs autonomously at a high speed, which is necessary for efficiently knocking out doors and maintaining trajectory during sports shooting. Due to the fact that the plastic shell 8 is turned with a blank bottom towards the flight of the bullet projectile, the powder material 7 does not spill out of the plastic shell until it hits the obstacle.

For example, when a given bullet projectile hits the door lock, the plastic shell 8 is destroyed and the powder material 7 breaks the lock with its kinetic energy, destroying its fasteners and the door material. After the castle is knocked out, small particles of powder material are scattered in the air and cannot cause injury to either the shooter himself or to people who are outside the door. High kinetic energy of a bullet projectile for knocking out a door is achieved through the use of a metal charge divided into two parts: the main and additional. In addition, this bullet projectile when firing in a confined space when it hits the walls does not ricochet and easily disintegrates into small particles that cannot cause injury to people in the room.

For example, when using this cartridge for sports shooting in closed ranges and on shooting stands when a bullet shell hits the pool, the catcher does not ricochet from it and does not damage it. This fact is very important due to the fact that bullet traps are expensive equipment.

For one of the specific embodiments of the new cartridge design, a 12/76 caliber cartridge was selected. 10 rounds of bullets with a bullet shell (total weight of the bullet shell was 29 g), with the following loading conditions: the mass of the metal charge 2.2 g (Sunar powder 42), the mass of the additional part propellant charge 1.1 g (gunpowder Sunar 42). An additional part of the propellant charge is separated from the main propellant charge by a cardboard diaphragm with a central hole of 1.8 mm diameter. Outer

 the diameter of the aperture is 19 mm and the thickness of the aperture is 1.5 mm. Igniter Capsule No. 688. Cartridge shells were sealed by rolling. As a powder material, tungsten powder was used both in bulk and pressed in the form of a cylindrical tablet. Tungsten powder was placed inside the standard plastic wad-container for steel shot, in the form of a hollow cylinder having a length of 42 mm. The wad-container had one open end and the other a blank one. The wad container was placed in the sleeve with an open end towards the wad. The weight of the wad container was 3 g.

As a result of shooting 5 pieces of cartridges from an MP-153 rifle with measuring the speed of a bullet projectile at a distance of 2.5 meters from the muzzle end, the chronograph obtained an average speed of 576 m / s. It is important to note that on standard cartridges the speed of a bullet projectile of this weight will be only 470 m / s, i.e. approximately 23% lower.

In addition, tests of this cartridge were carried out by firing at steel plates 2 mm thick from an MP-153 self-loading rifle from a distance of 5 meters. After the shots, the metal plates pierced through, and the tungsten powder scattered in the air after the plates were pierced.

Claims (3)

1. Cartridge for smooth-bore guns, containing a sleeve, an igniter capsule, a propellant charge, an additional part of the propellant charge separated from the main propellant charge by a diaphragm with a hole, wad and bullet shell, characterized in that the bullet shell is made of bulk powder material placed in plastic shell. 2. The cartridge according to claim 1, characterized in that the powdered metal is used as bulk powder: iron, iron alloy, a mixture of iron with other metals, iron compounds, barium compounds, tungsten, a mixture of tungsten with another metal, tungsten alloys and compounds tungsten. 3. The cartridge according to claim 1, characterized in that the plastic shell has a deaf and open end, through which bulk powdery material is placed inside it, and is located in the cartridge sleeve with an open end towards the wad.

Images