RU1787260C - Smooth-bore gun cartridge wad - Google Patents

Abstract

SUMMARY OF THE INVENTION: The wad is made in the form of a disk of polymeric material with corrugations protruding equally from the center, the lines of the vertices of each of which in plan cross the disk circumference at an acute angle. When firing a cartridge, the wad is located between the powder charge and the felt wad of the bullet. During the shot under pressure of the powder gases, the corrugations forming the protrusions settle slightly, spread out, and the wad adheres tightly to the walls of the sleeve or the bore, providing obturation. After exiting the bore, the wad is pressed against the felt wad of a bullet and is exposed to powder gases that overtake the bullet. In this case, the powder gases, interact with the protrusions, create a torque transmitted to the bullet due to the interaction of the wad of wad with felt wad of bullet. When the wad is used in shotgun cartridges, the scattering of the shot increases, which expands the affected area. Wad can be used in sporting and hunting shotguns x. 1 s.p. f-ly, 7 ill. (L

Description

The invention relates to the equipment of smoothbore guns.

Known wad for shotgun cartridges, made in the form of a disk with protrusions equally spaced from the center, the lines of the vertices of each of which in plan intersects the circumference of the base of the disk at an acute angle. Moreover, the surface of the disk adjacent to the projectile is made flat.

The known wad provides for the transmission of a rotational impulse to the shell immediately after it exits the gun from the barrel under the action of overtaking gunpowder gases, however, because the wad surface in contact with the projectile is flat, the transmission of the rotational impulse from the wad of the shell is insufficiently reliable.

The aim of the invention is to increase the transmission of rotational momentum to a bullet or shotgun and to reduce the weight of the wad.

To achieve this goal, in the wad for shotguns of smoothbore guns, made in the form of a disk with protrusions equally spaced from the center, the tops of each of which in plan cross the circle of the base of the disk at an acute angle, the protrusions are made in the form of corrugations. Moreover, the disk is made primarily of polymeric material.

In FIG. 1 shows a wad, side view; in FIG. 2 - same, plan view; in FIG. 3 VI

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the location of the wad under the bullet in the cartridge; in FIG. 4 shows an embodiment of the wad on the shank of a bullet; in FIG. 5- wad with a central hole for mounting on the shank of a bullet; in FIG. 6 and 7 are embodiments of wadding. . , jMfe w -; -. ..

The ski 1 is made in the form of a disk made of polymer material with protruding projections 2 in the form of corrugations, which are equidistant from the center, and whose top lines in plan intersect the circumference of the base of the disk at an acute angle. The lines of the peaks of the protrusions 2 can be made spiral (Fig. 2.5) or rectilinear (Fig. 6). The shape of the corrugations can be with an angle at the apex (Fig. 1) or with a rounding (Fig. 7). In the case of fastening the wad 1 to the shank 3 of the bullet 4 (Fig. 4), a hole 5 is made in the center of the wad 1 (Fig. 5).

The wad acts as follows: When the cartridge is equipped (Fig. 3), wad 1 is located between the powder charge 6 and felt wad 7 of the bullet 4. During the shot under pressure of the powder gases, the corrugations forming the protrusions 2 settle slightly, spread out, and the wad 1 fits snugly against the walls of the liner or bore, providing obturation. After exiting the bore, the wad 1 is pressed against the felt wad 7 of the bullet 4 and is exposed to powder gases, overtaking the bullet at a distance of about a meter and increasing its speed additionally. Gases at high speed hit the protrusions 2 and, changing its direction, moves along the path,

indicated by arrows 8. As a result of the outflow of gases, a torque is transmitted to the pool 4. This leads to the fact that the bullets having aerodynamic stabilization receive rotation even

the exposure time of the powder gases, and no additional energy is expended on the rotation.

When using this wad in shotgun cartridges, it increases

a scattering of shot, which expands the affected area.

Claims (2)

1. Wad for shotgun cartridges intended for communication rotational impulse of the projectile, made in the form of a disk with protrusions diverging from the center, the line of vertices of each of which in plan intersects the circumference of the disc at an acute angle, characterized in that, in order to increase the transmission of the rotational impulse to the bullet or shot shell and to reduce the mass of wads, the protrusions are made in the form of corrugations. 2. Wad according to claim 1, characterized in that it is made of a polymeric material.