RU2659289C1 - Small arms cartridge - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to ammunition, particularly, to small arms cartridges designs for hitting various targets. Cartridge of small arms consists of a bullet, a propellant charge and a bottom plug. Bullet is manufactured with increased parameters by mass and length by placing a propellant charge inside the cavity of its tail section. Walls of the tail part of the bullet are two coaxial cylinders that are closely adjacent to each other and have the same screw holes along the axis of symmetry in steps analogous to the trunk cutting step, which do not coincide with each other due to their rotation around the axis. Screw slots on the outer cylinder of the tail part of the bullet impart a rotational motion to the bullet during its flight in the air in the direction that it received when exiting the rifled barrel. Bottom plug with the primer is pressed into the bulge at the end of the tail of the bullet. Thickening provides the displacement of the walls of the tail part of the bullet in the radial direction due to the continuation of the inertial motion at the moment of collision with the obstacle (target destruction).

EFFECT: technical result consists in reducing the parameters of the sleeve to the state of the bottom plug, in increasing the weight, kinetic energy and damaging properties of the bullet, without changing the existing technical shape of small arms.

1 cl, 2 dwg

Description

The invention relates to ammunition, in particular to designs of small arms cartridges for hitting various targets.

Known inventions cartridge small arms with bullets of various designs: cartridge RF N 224508; cartridge of the Russian Federation N 2125231; cartridge of the Russian Federation N 2516879 and others. Their main disadvantages include the large weight of the sleeve, which provides, but does not participate directly in the defeat of the target.

The objective of the present invention is the creation of a cartridge with high damaging properties and the lowest specific gravity of the part of the cartridge that provides, but does not participate in the defeat of the target. The task is achieved by transferring the storage function of the powder charge from the sleeve to the pool. The prototype of the present invention is RF patent N 2591542. The difference is that the walls of the rear of the bullet 3 (Fig. 2) are two coaxial cylinders that have the same screw slots 6 along the axis of symmetry (Fig. 1, Fig. 2) and do not coincide due to their rotation around the axis of symmetry BB (Fig. 2). The walls of the coaxial cylinders are tightly adjacent to each other, providing sealing of the powder charge in the radial direction. For reliable amplification of the powder charge, the walls of the coaxial cylinders BB (FIG. 2) can be baked together by spot welding or other known methods. Screw slots on the outer cylinder of the tail of the bullet 6 (Fig. 1), 6 (Fig. 2) impart rotational movement to the bullet during its flight in the air in the direction that it received, leaving the barrel of the rifled weapon. The second difference between the invention and the prototype is a massive thickening at the end of the tail of the bullet 7 (Fig. 2), which provides a displacement of the walls of the tail of the bullet 3 (Fig. 2), B-B (Fig. 2) in the radial direction due to the continuation of its inertial movement at the moment of collision with an obstacle (target hit). Massive thickening of the end of the tail of the bullet and the number of slots in the coaxial cylinders of the tail of the bullet are selected so that they are guaranteed to shift in the radial direction at the time of hitting the target. From the theory of constructing small arms cartridges, it is known that with increasing bullet length, its instability in flight also increases. The cartridge can be stable in flight and effective in combat use in the event of an optimal combination of its length and angular speed of rotation. The tip of the bow of the bullet is selected so that there is no significant separation of the incoming air flow from the surface of the bullet and the reduction of its angular velocity necessary for a stable flight.

Thus, the invention allows to reduce the parameters of the sleeve to the state of the bottom plug, increase the total weight of the bullet and, accordingly, its kinetic energy, improve ballistic characteristics, increase the damaging properties of the bullet without changing the technical appearance of small arms.

The claimed invention is illustrated by drawings, where in FIG. 1 shows the appearance of the cartridge; FIG. 2 is a schematic illustration of a cartridge.

The positions in the drawings indicate:

1 - capsule;

2 - bottom plug;

3 - wall of the tail of the bullet;

4 - powder charge;

5 - bullet;

6 - screw slots;

7 - thickening of the tail of the bullet.

Claims (1)

The cartridge of a small weapon consists of a bullet, a propellant charge, a bottom plug and is characterized in that the bullet is made with increased parameters in weight and length by placing a propellant charge inside the cavity of its tail, while the walls of the tail of the bullet are two coaxial cylinders, tight adjacent to each other and having identical along the axis of symmetry screw slots with a step similar to the step of cutting the barrel, which do not coincide due to their rotation around the axis, and the bottom cap with a capsule -Igniter is pressed into the bulge at the end of the tail of the bullet.

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