RU2686806C1 - Universal wad container for shot and case shot - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to hunting and sports. Universal wad container for shot and case shot contains a body made of polyethylene in the form of a cup with a side wall divided by a transverse inner partition wall to form a bulk cavity for shot and buckshot and an obturator in the form of cups. At the end of the outer surface of the collar there are grooves for bleeding air. On side wall of the barrel there are helical grooves and through incisions forming lobes with possibility of contact of adjacent lobes surfaces along the above sections. Planes in which adjacent incisions lie are arranged at angle of 90° relative to each other. Longitudinal sections have different lengths to form petals of different lengths. Screw tapes are made in the form of twelve screw rectangular longitudinal slots to ensure rotation of projectile in flight around its axis. Shot and case shot are made steel and spherical and are laid in bulk cavity layers.

EFFECT: increased reliability of a barrel, increased accuracy of shot, improved uniformity of a shot heap, increased results of firing and reliability of target destruction.

4 cl, 4 dwg, 2 tbl

Description

The invention relates to the field of hunting and sport.

The closest analogue of the invention is a wad-container for shot containing a case made in the form of a glass, having a camera for a shot shell, a side wall and a bottom and equipped with a cuff, while in the side wall of the case parallel to its longitudinal axis are four through slots forming petals with the possibility of contact between the surfaces of adjacent petals along the said cuts, characterized in that the planes in which the adjacent cuts lie are at an angle of 90 ° relative to the other corner of a friend (RU 69626 U1 / 1 /) The disadvantage of the closest analogue / 1 / is the low firing rates, such as accuracy and scree at various firing distances, insufficient pellet energy for reliable target destruction at distances up to 45 meters.

The technical task of the claimed invention is to create a design universal container-wad, ensuring the preservation of the reliability of the barrel, increasing accuracy of shot, improving the uniformity of scree fraction, improving shooting results and reliability of hitting the target, the possibility of using a scheme for coordinated arrangement of several sizes of shot and shot in the cavity of one wad .

The technical problem is solved by the fact that the universal wad container for the shot and the canister comprises a polyethylene body in the form of a cup with a side wall divided by a transverse internal partition with the formation of a bulk cavity for the shot and a canister and the obturator in the form of cuffs. At the end of the outer surface of the cuff there are grooves for bleeding air. On the side wall of the glass there are screw grooves and through cuts, forming petals with the possibility of the contact of the surfaces of adjacent petals along the specified cuts. The planes in which adjacent cuts lie are located at an angle of 90 ° relative to each other. Longitudinal cuts are made of various lengths to form petals of various lengths. Screw rifles are made in the form of twelve helical rectangular longitudinal slits to ensure the projectile rotation in flight around its axis. Fraction and canister made of steel and spherical and laid in a bulk cavity in layers.

Fraction and canister can be made of low carbon steel.

The diameter of the shot and grapeshot in different layers may be the same and / or different.

Two grooves can be made.

The depth of the cavity can be additionally adjusted by laying on the bottom of the cavity felt or cork wads for a 20 gauge diameter of 15.2 mm.

Table 1 gives examples of the placement of shot and shot in the bulk cavity. The number in the layer of pellets or cartechin (line number 1, 2). Numbers of steel shot and shotgun (line number 3), their number of layers in the cavity of the container. The diameter of the cavity (line number 4). The depth of the cavity (line number 5).

It was determined by calculation that, for example, cartilage 3 with a diameter of 7.0 mm and four carcassins with a diameter of 6.2 mm in a cavity, 15.2 mm in diameter and 30.0 mm in depth are placed in one layer.

The fractions and shotgun sizes listed in Table No. 1 cover all types of shot and shot cases for shot hunting and shooting competitions in Russia, therefore, the claimed w-container with which cartridges are loaded can be called universal.

Depth H, mm bulk cavity is determined by the formula: H = N × D × Ky, where D is the fraction of fraction and grapeshot, mm, N is the number of layers, Ku = 0.875 is the shrinkage factor, and the diameter is Dп, mm of the cavity is equal to Dп = M × D × Ky, where M is an integer number of pellets in a single layer, D is the diameter of a fraction and a canister, mm, Ky = 0.875 is the shrinkage factor.

When choosing alternatives from toxic lead shot, metals such as zinc, tin, molybdenum, cadmium bismuth, tungsten, depleted uranium and even gold are considered because of its high density - 19.82 g / cm ²

However, low-carbon steel, from which riot wire is made for shot, has a clear advantage in price, production volumes in Russia, manufacturability in mass production and relatively low hardness in the delivery stage (up to 150 HV units), compared to other expensive and rare metals .

Table 2 shows the basic data on steel shotgun and carte shells weighing 24 grams.

Due to the use of an improved container design with a cavity filled with spherical steel grains and carcasses of tightly packed layers, the number of pellets in the projectile increases by 1.5 times, the projectile velocity increases to 420 m / s, and the pressure on the cavity walls decreases ) pellets and cartesins, the presence on the surface, as well as by the presence on the outer surface of the container of twelve longitudinal rectangular screw slots, is achieved technical result, zakl yuchayusya in preserving the reliability of the barrel, increasing the accuracy of the fraction, improving the uniformity of fractional debris, improving the results of shooting and the reliability of hitting the target, the possibility of using a scheme for coordinating the arrangement of several sizes of shot and shot in the cavity of one wad container.

The invention is illustrated by drawings.

FIG. 1 shows a longitudinal section A-A of a shot projectile with the proposed wad container;

FIG. 2 shows the outer surface of the proposed wad container with longitudinal slits and cuts;

FIG. 3 shows the view A from the front of the wad container,

FIG. 4 - view B of the container from the side of the cuff.

The container body 1 is made in the form of a glass, which has a bulk cavity 2 for a shot shell, a cuff 5. longitudinal cuts 7, grooves for air bleeding 4. longitudinal helical slits 3, a cavity of the cuff 6.

When testing the proposed wad container with steel shot No. 7 (diameter 2.5 mm) at a distance of 35 meters from a gun with a choke narrowing of 1.0 mm, the heaps were 85%, no breakthroughs were found in the container walls, petals are traces of dents from the pellets located in concentric circles up to a height of% of the length of the petals. This shows that the entire shot shell, at maximum pressures, does not touch the surface of the barrel when fired, and, being compacted, is a shock absorber for getting a comfortable shot for recoil.

10 cartridges were fired from a ballistic barrel (“Sunar 24” powder weight - 1.5 grams, shot weight - 24 grams, speed - V0 - 420 m / s, pressure in the chamber 660 atm). Fractional hardness of steel 20, diameter 2.5 - 158-136HV (protocol No. 3 of the study in the Central Laboratory of OJSC Moscow Bearing, fraction produced by OOO NPF Yuliya).

The above results give reason to use the claimed wad container during hunting and shooting sports when the mandatory condition is met - the maximum deviations of the diameter of a fraction must comply with GOST 7837-76.

The mass of shot and grapeshot in the container is calculated taking into account the density of steel-7.85 g / cm3.

Claims (4)

1. Universal wad container for shot and shot, containing a body of polyethylene in the glass with a side wall divided by a transverse internal partition with the formation of a bulk cavity for shot and shot and a shutter in the form of a cuff, at the end of the outer surface of the cuff are grooves for venting air , screw grooves and through cuts are made on the side wall of the glass, forming petals with the possibility of contact of the surfaces of adjacent petals along the specified cuts, and the planes in which the adjacent ones lie The cuts are arranged at an angle of 90 ° relative to each other, characterized in that the longitudinal cuts are made of different lengths to form petals of various lengths, the screw grooves are made in the form of twelve helical rectangular longitudinal slits to ensure the projectile rotation in flight around its axis, while the fraction and the canister is made of steel and spherical and laid in a bulk cavity in layers. 2. Wad container under item 1, characterized in that the fraction and the canister are made of low carbon steel. 3. A wad container according to claim 1, characterized in that the diameter of the shot and the canister in different layers is the same and / or different. 4. Wad container under item 1, characterized in that two grooves are made.

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