RU6231U1 - CARTRIDGE FOR SMOOTHING WEAPONS - Google Patents

Description

CARTRIDGE FOR SMOOTHING WEAPONS

The invention relates to ammunition, in particular to bullet cartridges for smooth-bore hunting weapons.

A cartridge for smoothbore weapons is known, which, like the claimed one, contains a sleeve, a combat charge, an ignition device, a wad and a projectile (bullet) equipped with covering centering detachable elements, containing a warhead and a stabilizer mounted on it (Copyright certificate N 324468, CL F42B 7 / 10, publ. 1971) 1.

Known cartridge 1 has a complex and unreliable design of a fixed connection of the head with a stabilizer. A groove is made on the shank of the head part, in which the stabilizer is fixed. The groove requires additional operations in the manufacture of the cartridge and is a stress concentrator. In addition, the stabilizer must somehow be fixed in the groove, apparently through plastic deformation of the stabilizer body, which complicates the manufacture of the cartridge.

A known projectile (bullet) for smooth-bore weapons, which, like the projectile in the claimed cartridge, is covered by centering detachable elements and consists of a head part made of plastic material and provided with a shank and a recess from the tail part, and a stabilizer made with an annular protrusion located in the recess of the head of the shell, and through hole, in which the shank of the head of the shell is placed. The head part is connected to the stabilizer due to plastic deformation of the head part of the projectile under the action of inertia forces, when the projectile moves in the barrel of the weapon, while the plastic material of the head part settles and moves into the annular groove made on the annular protrusion of the stabilizer, and forms a lock fixed connection ( Author's certificate N 1141293. CL F42B 11/02, publ. 1985) 2.

The fixed connection of the stabilizer with the head part in the known device 2 is unreliable. Shank for fixed connection with stabilizer not

is used. The bottom of the stabilizer hole does not interact with the shank material. In any case, information about this is missing. In addition, the implementation of the stabilizer in one piece with the wad increases the rigidity of the structure of the walls of the stabilizer hole, since they are reinforced by the protrusions of the stabilizer, so much that even when the bottom of the stabilizer hole interacts with the shank material under the influence of inertia, deformation of the hole walls is sufficient to form a reliable fixed connection with a shank will not occur. When the projectile leaves the channel of the barrel of the weapon, the stabilizer experiences resistance to movement during friction against the channel of the muzzle of the barrel of the weapon. At this moment, the head part, having dispersed in the trunk, does not experience the indicated resistance to movement. As a result, the head part tends to break away from the stabilizer. The same thing happens during the flight of the projectile, when the stabilizer experiences air resistance, at which a force arises, tending to tear the stabilizer from the head of the projectile. Because the material of the head forming a lockable fixed connection with the protrusion

stabilizer, when the head of the shell does not exit

limited for radial movement

centering detachable elements, due to the fact that they have already left the channel of the gun’s barrel and can be easily separated from the head of the projectile and move in a radial direction relative to it, the castle connection of the head with the stabilizer is revealed due to the radial deformation of the material

the head part, which forms the castle fixed connection with the stabilizer, and the head part of the projectile may lose the stabilizer already at the exit from the channel of the barrel of the weapon or in flight.

Closest to the claimed device is a well-known cartridge for smooth-bore weapons, which, like the claimed one, includes a sleeve, a combat charge, an ignition device, a wad and a shell equipped with centering detachable centering elements containing a head made of plastic material and a stabilizer mounted on it, (Varnakov A. Bullet Poleva. Journal of Hunting and Hunting. -M., N 1, 1996, p. 36-37, publ. January 1996) 3.

The information source 3 does not disclose the design of the mounting of the head of the cartridge with a stabilizer. If we assume that the design of this mount is the same as in 2, then it suffers from the same disadvantages as described above.

Unlike 3 in the claimed cartridge, the head of the projectile is made with a shank and a recess from the side of the tail part, the stabilizer is equipped with a protrusion located in the recess of the head of the projectile and is made with a through hole, the shank of the head of the projectile is installed in the stabilizer hole, the bottom of which is intended for interaction with the shank of the head of the projectile, plastically deformed due to inertia forces arising from its accelerated movement in the channel

the barrel of the weapon, during which, due to the high pressure in the plastic material, it is predominantly the shank of the head of the projectile. arising in a closed cavity formed by the bottom and side walls of the stabilizer, there is a radial barrel-shaped deformation of the side walls of the hole of the stabilizer, forming a fixed connection of the shank with the stabilizer.

The sign regarding the purpose of the bottom of the stabilizer hole is formulated at the level of functional generalization.

All described essential features of the claimed design are common.

Fixed connection of the head of the projectile with the stabilizer in the proposed device is as follows.

When the cartridge is assembled, the connection between the warhead and the projectile stabilizer is usually movable. The shank of the head is preferably loosely inserted into the stabilizer bore. After ignition of the combat (powder) charge, the projectile begins to move in the barrel of the weapon with acceleration. As a result, all elements of the projectile experience inertia, the direction of which is opposite to the direction of acceleration of the projectile, and the value is determined by the magnitude of the acceleration and the mass on which it acts. The head of the shell is made of plastic material (lead or its alloy with tin and antimony). Experiencing the force of inertia, the material of the head part is deformed (flows) in the direction of the stabilizer. Wherein

it exerts axial pressure on the annular protrusion of the stabilizer, creating axial compression stress in the side walls of the stabilizer. In addition, the material of the head part moves into the free cavity and fills it, while pressure increases in it. After filling it with a free cavity, this pressure increases sharply in the plastic material located in the stabilizer hole, due to the formation of an enclosed space between the bottom and the side surfaces of the stabilizer hole in which the plastic material is located. Pressure is transmitted to the side walls of the stabilizer and deforms them in the radial direction. The edges of the side walls of the hole are more rigid in the radial direction than their middle part, since one edge is adjacent to the bottom of the hole, and the other is in the annular groove of the head of the projectile and its radial deformation is prevented by the material of the head part, in which, due to inertial forces and confined spaces, created a lot of pressure. In this regard, the middle part of the side walls of the hole begins to deform in the radial direction (inflate) more actively than the edges. The process of radial deformation of the side walls of the hole also contributes to the fact that the side walls of the stabilizer experiences axial compression. As a result, when the projectile flies out of the channel of the barrel of the weapon, the surface of the hole and the shank at the point of contact acquire a barrel-shaped shape, due to which a reliable geometrically closed fixed connection of the shank of the head part and the stabilizer of the projectile takes place. When passing the muzzle of the barrel of a weapon

separation of the warhead from the projectile stabilizer is prevented by this fixed connection. In addition to reliable fixed connection of the warhead with the stabilizer, the claimed design gives the projectile a predetermined aerodynamic shape, provides reliable separation of the centering elements and the wad from the projectile at the exit from the barrel without knocking the projectile off the flight path, and thereby improves the accuracy of the battle. Using a different shape of the head of the projectile, changing its mass by changing the length and selecting powder charges appropriate for the power, it is possible to create cartridges for various purposes: hunting for various game, animals, sport shooting, etc.

The following are some of the significant significant degrading features of the claimed device:

- part of the stabilizer, together with stabilizing protrusions, is placed in the corresponding recess made at the end of the wad. The specified placement of the stabilizing protrusions allows you to make more reliable self-removal of the centering detachable elements, since if the stabilizing protrusions are placed in the recesses of the centering detachable elements, they can interfere with the free self-removal of these elements;

- in the bottom of the recess at the end of the wad under the stabilizing protrusions of the stabilizer grooves are made. The implementation of the grooves protects the stabilizing protrusions from deformation during the movement of the projectile along the bore. When the wad presses on the stabilizer and deforms it, the stabilizing protrusions have the opportunity to avoid

deformation from exposure to wad due to axial movement in the space of the grooves;

- deepening at the end of the wad exceeds the axial dimensions of the stabilizing protrusions. These signs are also aimed at eliminating the deformation of the stabilizing protrusions. When axial compression of the wad under pressure of gases (powder) on the one hand and inertia forces and projectile on the other hand, the recess at the end of the wad, in which the stabilizing protrusions are placed, in the axial direction decreases. Due to the fact that this recess initially in the axial direction exceeds the axial dimensions of the stabilizing protrusions, the deformation of the stabilizing protrusions, which can occur if their axial dimensions due to the axial deformation of the wad, exceed the axial dimensions of the recess, is excluded:

The stabilizer is made of a more rigid material than the material from which the wad and centering detachable elements are made. A stiffer stabilizer allows you to better maintain the correct shape of the projectile (bullet), and a softer material wad and centering detachable elements ensure the normal passage of the projectile through the bore and muzzle narrowing. In addition, the soft material of the centering detachable elements does not interfere with the radial deformation of the side walls of the stabilizer hole under the action of the bursting force created by the material of the head of the projectile;

stabilizer is made of high density low pressure polyethylene. An example of the manufacture of a stabilizer from a material that gives the highest

results on the most important parameters of the design of the cartridge and ballistic characteristics of the projectile;

- wad made of low density polyethylene. An example which, in the opinion of the author, who has tested various materials, is most preferable in terms of quality;

-centric detachable elements are made of high density polyethylene of low density. The most optimal material for this design has been experimentally established, providing the best combination of the ballistic properties of the projectile and the reliability of the connection of its stabilizer with the warhead;

-the head part of the projectile is made of lead or an alloy of lead with antimony and tin, and the content of antimony and tin in the alloy in total should not exceed 1.0 maes. percent. The most optimal material for this design has been experimentally established, providing the best combination of the ballistic properties of the projectile and the reliability of the connection of its stabilizer with the warhead;

The cartridge contains two centering detachable elements. Preferably for weapons of small calibers;

The cartridge contains three centering detachable elements. Preferably for weapons of large caliber;

-the edges of the sleeve are bent towards the centering detachable elements. The simplest means for fixing the projectile;

-the edges of the sleeves are rolled towards the centering detachable elements. The fixative is more complex, but also better;

-centric detachable elements on the inner surface have protrusions that hold the head of the projectile;

-the bottom of the through hole of the stabilizer is made convex. The form of execution, contributing to an increase in radial pressure on the side walls of the stabilizer;

-head part of the shell in front is gabled. The optimal form for hunting in any conditions;

-head part of the projectile in front is made with a conical hole. It has a great damaging effect, but is limited to use only in open areas, as small obstacles (grass, branches, etc.) can cause a shell to burst;

-centric detachable elements are made with a smooth outer surface, the guide of which is a circle. The most optimal form, giving the highest ballistic properties to the projectile;

the detectable diameter of the centering detachable elements from the front end has the largest size. The proposed constructive solution is aimed at eliminating the influence of minor deviations in the dimensions of the inner diameter of the sleeve and the outer diameter of the centering detachable elements on the tight fit of the centering detachable elements in the sleeve. It is applied if necessary multiple use of a sleeve;

- The side surfaces of the shank of the head of the projectile and through hole of the stabilizer are made cylindrical. The most technological elements

- 10 designs;

- the recess in the head of the projectile is made circular. The most technologically advanced solution;

-the protrusion of the stabilizer, located in the recess of the head of the projectile, is made annular. The most technologically advanced solution;

- an annular groove is made in the bottom of the stabilizer hole, the largest diameter of which is equal to or less than the diameter of the stabilizer hole. The groove is designed to reduce the rigidity of the side walls of the stabilizer bore, to facilitate its deformation;

- on the side surface of the hole of the stabilizer and on the side surface of the shank of the head of the projectile are made helical grooves and protrusions forming a screw connection. An additional tool to improve the reliability of the connection between the head and the stabilizer of the projectile for use in shotguns having a narrowing of the barrel at the muzzle;

- screw connection is made with the angle of inclination of the screw surfaces, greater than the angle of self-braking. The solution improves the manufacturability of the assembly;

-the bottom of the through hole of the stabilizer is made conical convex. The most technologically advanced solution, taking into account the convex bottom properties described above.

In FIG. 1 shows a General view of the claimed cartridge in the context;

- and part of the projectile with a conical hole;

in FIG. 3 shows a simplified diagram of the distribution of load on the side walls and protrusion of the stabilizer, the bottom of the hole and the rear of the stabilizer;

in FIG. 4 - shell after departure from the bore and separation of the centering detachable elements.

The cartridge for smooth-bore weapons consists of a paper or plastic sleeve 1, in which a combat (powder) charge 2, an ignition device (capsule) 3, wad 4 and a projectile (bullet) are placed. The projectile consists of a head part 5, a stabilizer 6 installed on it and is equipped with centering detachable elements (sectors) 7.

The head part 5 of the projectile may have a pointed tip 8 or a tip with a conical hole (recess) 9 at the apex (figure 2). A bullet (shell) with a conical hole 9 at the apex is called expansive. The head part 5 of the projectile is provided with a shank 10 and a recess 11 (preferably annular) from the side of the tail part (shank).

The stabilizer 6 in the rear part has stabilizing protrusions 12 located uniformly around the circumference, made oblong and inclined to its axial plane. Along the geometric axis of the stabilizer 6, a through hole 13 is made (preferably round, FIG. 2). In the front part, the stabilizer 6 has a protrusion 14 (preferably annular), designed to be placed in the recess 11 of the head of the projectile, the dimensions of which correspond to the dimensions of the protrusion 14. In the hole 13

- 12 stabilizer 6 is placed hvsstovik 10 head part 5 of the projectile. The bottom 15 (figure 2) of the hole 13 of the stabilizer 6 is designed to absorb the pressure of the plastic material mainly of the shank 10 of the head part 5 of the projectile, which is plastically deformed due to the inertia forces arising from the accelerated movement of the projectile in the barrel of the weapon, during which due to high pressure in the plastic material of the predominantly shank 10 of the head part 5 of the projectile arising in a closed cavity formed by the bottom 15 and the side walls 16 of the stabilizer 6, a radial barrel-shaped deformation of the side occurs the outlet walls 16 of the stabilizer 6, as a result of which a geometrically closed fixed connection of the shank 10 with the stabilizer 6 is formed. A free cavity 18 can be formed between the bottom 15 of the hole 13 and the end face 17 of the shank 10. The bottom 15 of the hole 13 can be made flat or convex, for example, in the form of a cone. The bottom 15 of the hole 13 from its side surface 19 can be separated by an annular groove 20, the largest diameter of which is equal to or less than the diameter of the hole 13. On the side cylindrical surface 19 of the hole 13 and the mating lateral cylindrical surface 21 of the shank 10, screw protrusions and depressions can be made, forming a screw connection 22, for example, with an angle of inclination of the screw surface greater than the angle of self-braking.

The stabilizing protrusions 12 are located on the rear of the stabilizer 6 and are placed with it in the recess 23 at the end of the wad 4. The configuration of the recess corresponds to

- 13 1. The configuration of the stabilizing protrusions and the part of the stabilizer 6 on which they are located. It is desirable that the protrusions 12 of the stabilizer 6 be sunk in relation to the upper cut of the wad 4. In other words, the dimensions of the recess 23 in the axial direction should exceed the axial dimensions of the stabilizing protrusions 12. The bottom part of the recess 23. made at the end of the wad has grooves 25 located strictly under the stabilizing protrusions 12 of the stabilizer 6. At the bottom of the wad 4 there is an obturator 26. Centering detachable elements 7 cover the head part 5 of the projectile and stabilizer 6 except for its rear part 27, which carries the stabilizer ruyuschie protrusions 12 and the retaining ring are provided with projections 28 intended for holding the head portion 5 of the projectile. The number of centering elements 7 can be any, but the best results in accuracy of fire are achieved when the number of centering detachable elements 7 was equal to two or three. The centering detachable elements 7 have a smooth outer surface, the guide of which is a circle. The outer diameter of the centering detachable elements from the front end side can be made on a cone, the straight forming of which has a length of 5-12 mm, and the diameter of the larger base of the cone at the front end is larger than the diameter of the smaller base located between the ends of the centering detachable elements, by about 0.7 mm, while the rest of the outer surface of the centering detachable elements is cylindrical. - 14 Such equipment is used when loading a weapon with one cartridge with repeated use of plastic shells, providing the highest accuracy of the battle. In this case, the fixing of the projectile and the centering detachable elements is ensured by wedging the front of the centering detachable elements. Due to the small angle of inclination of the conical outer surface of the centering detachable elements, they are easily inserted into the sleeve together with the remaining elements of the cartridge and are securely held in it due to the friction forces between the centering detachable elements and the inner cylindrical surface of the sleeve, and the friction force, due to the small angle the inclination of the generatrix of the conical surface to the axis of the cone is much higher when trying to push the centering detachable elements from the sleeve than in the opposite direction.

The stabilizer 6 is made of a more rigid material than the material from which the wad 4 and the centering detachable elements are made 7. The stabilizer 6 is preferably made of high density low pressure polyethylene, and the wad 4 and the centering detachable elements 7 are made of low density high pressure polyethylene.

The head part 5 of the projectile is made of a plastic material, preferably lead or an alloy of lead with antimony and tin, and the content of antimony and tin in the alloy in total should not exceed 1.0 mass percent.

The edges of the sleeve 1 must hold the centering detachable elements 7. To do this, they can be bent or rolled towards the centering detachable elements.

- 15 Theoretically, a free cavity 18 may be absent if the end face 17 of the shank is mated to the bottom 15 of the hole of the stabilizer. In practice, this is quite difficult to implement. The volume of the free cavity 18 should not be too large and is chosen so that it is filled with the material of the liner during the movement of the projectile along the channel of the weapon barrel after ignition of the combat (powder) charge 2, which due to the sharp increase in pressure (because of the huge accelerations in the barrel bore the material of the projectile head 5 behaves as a very viscous substance) will deform the side walls 16 of the hole 13 of the stabilizer 6 with the material of the predominantly shank 10 of the projectile head when accelerated wound movement of the projectile in the barrel of the weapon due to deformation of the material of the head of the projectile under the action of inertia. In other words, the volume of the free cavity 18 should be no more than that in which, during the movement of the projectile along the bore, a geometrically closed barrel-shaped fixed connection of the projectile head 5 with the stabilizer 6 is formed.

The specific value of the volume of the free cavity depends on many factors: the characteristics of the particular combat (powder) charge used, its size, the diameter of the shell, the diameter of the projectile, its mass and the plastic properties of the material from which it is made, the physico-mechanical properties of the stabilizer material, the thickness of the side walls its holes, the configuration of the bottom of the hole, etc., therefore, it is determined experimentally. Several

- 16 options with different sizes of the volume of the free cavity. A test shooting is made in soft material, which allows you to save the projectile and determine whether it was reliable enough whether the head of the projectile was stationary with the stabilizer or not. After that, recommendations for the volume of the free cavity are given for a specific cartridge (in some cases, it may not be).

If the volume of the free cavity does not exceed a certain value, taking into account the above factors, then the following occurs when firing.

A projectile pushed by a wad experiencing the pressure of powder gases begins to accelerate in the barrel of the weapon. The mass of the head of the projectile undergoes inertial forces, under the influence of which the head part is plastically deformed, while it is formed by centering detachable elements, the radial movement of which is limited by the lateral surfaces of the bore. The projectile takes on the form shown in FIG. 4. In the plastic material of the head of the projectile significant stresses develop, causing its deformation. Under these conditions, the material behaves as a very viscous liquid. Under the influence of inertia, the material of the shank and the rest of the projectile adjacent to it flows through the stabilizer opening, filling the free cavity. After filling the free cavity, conditions arise similar to those that occur with a liquid located in a confined space and experiencing pressure. The load diagram is shown in FIG. 3.

- 17 d The pressure g in the material located in the stabilizer hole increases sharply and is transmitted to the side walls of the stabilizer, trying to distribute it in the radial direction. The radial deformation of the protrusion 14 is prevented by the material of the projectile head located between the protrusion and the centering detachable elements 7, also located in a confined space in which pressure g also appears, partially or completely balancing the radial pressure from the side of the material located in the stabilizer opening. The radial deformation of the side walls of the hole in the zone of their connection with the bottom prevents this connection. The radial deformation of the middle part of the side walls located between the bottom of the stabilizer hole and the protrusion 14 is prevented only by the rigidity of the structure itself, which is the smallest in the middle part and the rigidity of the material of the centering detachable elements 7, which are deformed under the action of radial load. Initially, deformation of the side walls of the hole does not require much effort, but gradually as the deformation increases, the resistance increases. At this moment, an important role is played by the fact that the side walls are also subjected to axial load under the support of the wad g, axial inertial load F from the head of the projectile and its own axial inertial load, although the latter can be ignored due to its insignificant effect on the processes. Until the side walls receive radial deformation, they resist axial load. But as soon as a barrel-shaped deflection of the side walls was formed. - 18 immediately the effect of the radial load on them increases, since the axial load causes a bending moment, and this moment is greater, the greater the deflection of the side walls of the stabilizer hole. The stabilizing protrusions do not prevent deformation of the side walls of the stabilizer hole, since they are displaced in the axial direction relative to the hole so that the projection of the stabilizing protrusions on the stabilizer axis is not blocked by the projection of the stabilizer hole on the same axis.

When the projectile leaves the bore, it already has a different look (figure 4). The shank 10 is barrel-shaped. The side walls 16 have settled in the axial direction and also has a barrel-shaped shape. When the projectile leaves the gun channel under the action of the oncoming air stream, the centering detachable elements and the wad are separated, and the projectile begins to rotate due to inclined stabilizing protrusions, which increases the accuracy of the battle. When testing a cartridge, the accuracy indicators of a battle from hunting smoothbore guns with various muzzle constrictions from a cylinder with a pressure to a full choke, the dispersion of bullets when firing at a distance of 100 meters was 100 mm.

- 19 Formula

Claims (26)

1. A cartridge for smooth-bore weapons, including a sleeve, a combat charge, an ignition device, a wad and a shell equipped with centering detachable elements, comprising a head part made of plastic material and a stabilizer mounted on it, characterized in that the head part of the shell is made with a shank and a recess from the tail end, the stabilizer is equipped with a protrusion located in the recess of the head of the projectile, and is made with a through hole, the shank of the head of the projectile is installed in the stabilizer hole, the bottom of which is designed to interact with the shank of the head of the projectile, which is plastically deformed due to inertia arising from its accelerated movement in the barrel of the weapon, during which, due to the high pressure in the plastic material, the shank of the head of the projectile that occurs in a closed cavity formed by the bottom and side surfaces of the stabilizer hole, there is a radial barrel-shaped deformation of the side walls of the stabilizer, cutting off not movable shank connection with stabilizer.  2. The cartridge according to claim 1, characterized in that the part of the stabilizer together with the stabilizing protrusions is placed in the corresponding recess made at the end of the wad.  3. The cartridge according to claim 2, characterized in that the grooves are made in the bottom of the recess at the end of the wad under the stabilizing protrusions of the stabilizer.  4. The cartridge according to claims 2 and 3, characterized in that the recess at the end of the wad exceeds the axial dimensions of the stabilizing protrusions.  5. The cartridge according to claim 1, characterized in that the stabilizer is made of a more rigid material than the material from which the wad and individual elements are made.  6. The cartridge according to claims 1 and 5, characterized in that the stabilizer is made of high density low pressure polyethylene.  7. The cartridge according to claims 1 and 5, characterized in that the wad is made of low density polyethylene of high pressure.  8. The cartridge according to claims 1 and 5, characterized in that the centering detachable elements are made of high density polyethylene of low density.  9. The cartridge according to claim 1, characterized in that the head of the projectile is made of lead or a lead alloy with antimony and tin, and the content of antimony and tin in the alloy in total should not exceed 1.0 wt.%.  10. The cartridge according to claim 1, characterized in that it contains two centering detachable elements.  11. The cartridge according to claim 1, characterized in that it contains three centering detachable elements.  12. The cartridge according to claim 1, characterized in that the edges of the liner are bent towards the centering detachable elements.  13. The cartridge according to claims 1 and 12, characterized in that the edges of the liner are rolled towards the centering detachable elements.  14. The cartridge according to claim 1, characterized in that the centering detachable elements on the inner surface have protrusions holding the head part.  15. The cartridge according to claim 1, characterized in that the head of the projectile is pointed.  16. The cartridge according to claim 1, characterized in that the head of the projectile in front is made with a conical hole.  17. The cartridge according to claim 1, characterized in that the bottom of the through hole of the stabilizer is convex.  18. The cartridge according to claim 17, characterized in that the bottom of the through hole of the stabilizer is conical.  19. The cartridge according to claim 1, characterized in that the centering detachable elements are made with a smooth outer surface, the guide of which is a circle.  20. The cartridge according to claim 19, characterized in that the outer diameter of the centering detachable elements from the front end side has the largest size.  21. The cartridge according to claim 1, characterized in that the side surfaces of the shank of the head of the projectile and through hole of the stabilizer are cylindrical.  22. The cartridge according to item 21, wherein the recess in the head of the projectile is made circular.  23. The cartridge according to paragraphs. 21 and 22, characterized in that the protrusion of the stabilizer located in the recess of the head of the projectile is made circular.  24. The cartridge according to claims 21 to 23, characterized in that an annular groove is made in the bottom of the stabilizer hole, the largest diameter of which is equal to or less than the diameter of the stabilizer hole.  25. The cartridge according to claims 21-24, characterized in that on the lateral surface of the stabilizer hole and on the lateral surface of the shank of the projectile head helical grooves and protrusions are formed, forming a screw connection. 26. The cartridge of claim 25, wherein the screw connection is made with an angle of inclination of the screw surfaces greater than the angle of self-braking.