RU45519U1 - Armor-piercing bullet for ironing guns - Google Patents

Abstract

The invention relates to the field of designing ammunition of high armor-piercing and damaging effects. The essence of the invention is a highly effective armor-piercing bullet for smooth-bore guns. High penetration ability of the bullet is achieved due to the fact that in the known pool for smooth-bore guns, consisting of a plastic stabilizer and a metal striking part, the striking metal part is made in the form of a metal pointed elongated armor-piercing core of high hardness with a length to diameter ratio of at least 2, placed with interference fit in a metal pallet made in the form of a glass with a blank bottom and a flange, while the pallet is tightened in a cylindrical cavity of a plastic stub lizator.

Description

The invention relates to the field of designing ammunition of high armor-piercing and damaging effects.

Known anti-ricochet bullet for smooth-bore guns, containing a metal striking part made in the form of a cylinder with a ratio of length to diameter of at least 1.5, placed along the axis of the bullet with an interference fit inside a cylindrical plane, made in a plastic stabilizer having a skirt and shock absorber [Utility Model Patent RF №36504 Bull. No. 17 dated 03/10/2004].

This bullet design is taken as a prototype.

The disadvantage of a bullet is that the shape of the core of the bullet and its material are not effective for breaking solid barriers, for example, steel.

Known are armor-piercing bullets of rifle cartridges containing an elongated steel armor-piercing core enclosed in a shell of softer material (for example nickel silver, tompak, etc.). ["American Rifle Cartridge", g. "Kalashnikov", No. 6, 2001 p. 39-39].

This bullet design is taken as an analogue. Armor-piercing bullets of rifle cartridges are designed to penetrate solid obstacles, including steel.

The disadvantage of the design of such bullets is that they cannot be used in smoothbore weapons, since their stabilization in flight is achieved due to the rotation of the bullet, which it acquires during movement along the rifled barrel.

When firing such bullets from a smoothbore gun, their flight on the trajectory is unstable - they are "somersaulting", due to the fact that the bullets are not stabilized by rotation. This makes it impossible to ensure either accuracy of fire, or armor penetration.

For high armor penetration and accuracy, it is necessary that elongated armor-piercing bullets with a pointed warhead move stably along the trajectory of the pointed warhead forward.

The objective of the invention is the creation of designs of highly effective armor-piercing bullets for smooth-bore weapons.

The problem is solved by addressing these shortcomings of bullets, known for the prototype. In the proposed design of the bullet, the metal striking part is made in the form of a metal pointed elongated core of high hardness with a length to diameter ratio of at least 2, placed with an interference fit in a metal tray, made in the form of a glass with a blank bottom and a flange, while the tray is placed with an interference fit in a cylindrical cavity plastic stabilizer.

The figure shows the proposed design of the bullet.

The proposed bullet consists of: a plastic housing-stabilizer 1, having an obturating skirt 4 and a shock-absorbing device 5; pointed elongated armor-piercing core 3, placed tightly in a metal pallet 2, which is placed tightly in a cylindrical cavity of a plastic stabilizer body.

The bullet is easy to manufacture. Metal parts of the bullet are produced in bulk on automatic turret lathes. Plastic stabilizers of the proposed design of the bullet due to the fact that plots of plastic with a thickness of more than 3 mm are not embedded in their design can be manufactured on modern high-performance casting rotor-conveyor lines with a duty cycle of not more than 1.5 minutes. Metal damaging parts are inserted into the inside of the plastic stabilizers to the stop in the bottom of the cavity on an automatic machine, which completes the manufacturing process of bullets.

When a bullet hits a steel plate with the resistance forces of the plate material, the plastic stabilizer and the metal tray are torn off from the pointed elongated armor-piercing core, and the core begins to move independently and breaks through solid obstacles, for example, thick steel sheets.

It is important to note that the proposed bullet also belongs to the class of arrow-shaped hunting bullets for smooth-bore weapons and is stabilized in flight not due to rotation around its axis, but due to the center of gravity of the bullet being in front of the center of pressure of air resistance to the movement of the bullet along the trajectory.

To confirm the operability of the proposed bullet design, an experimental batch of 12-caliber bullets was made, with a total mass of one bullet of 27 g. The mass of the plastic bullet body is 5 g. The mass of the metal body is 8 g. The mass of the core is 14 g. The core has the following geometric dimensions: diameter ~ 10.9 mm; length 26 mm; angle of the cone of the pointed part 60 °.

Using the manufactured bullets, cartridges were equipped with a separated powder charge, known according to the patent No. 2102693 and intended to increase the flight speed of shells, for example, shotguns, without increasing the maximum pressure of the powder gases when fired.

After firing 20 pieces of cartridges from a ballistic shotgun MTs-16-12 and a self-loading shotgun MP-153, it was found:

- the average maximum pressure of the powder gases is 485 kgf / cm ² ;

- the average speed of the bullet at a distance of Hume from the muzzle end is 490 m / s;

- the dispersion diameter of bullets at a distance of 35 m is 15 cm. When studying the armor penetration of bullets, it was found that they

pierce a 10 mm thick armor plate at a distance of 20 m from the muzzle of the gun, which is not provided by any known bullet for smooth-bore weapons. It was also established that the bullets move along the trajectory with a steadily pointed part forward, which is confirmed by the presence of round holes in the armor plate.

The proposed bullet made drawings TKMU 771828.000.048. The present invention is practicable and can be used to design specials. ammunition.

Claims (1)

Bullet for smooth-bore guns containing a metal striking part, a plastic stabilizer, the length of which is more than 1.5 times the length of the metal striking part and whose obturator skirt is connected to the plastic stabilizer through a shock-absorbing device in the form of an integrated structure with 1.1 thick walls -1.5 mm and with a shape changeable during the shot in the form of sequentially located from a plastic cup to an obturating skirt with a semicircle of radius 5-7 mm from with a stiff-like stiffness stiffness and a diamond with a diagonal of 8-10 mm, in which two ribs intersecting the axis of the bullet are cut 1.5-2.5 mm on one side by the wall of the obturating skirt, and on the other by a semicircle wall, characterized in that the metal the striking part is made in the form of a metal pointed elongated armor-piercing core of high hardness with a length to diameter ratio of at least 2, placed tightly in a metal pallet made in the form of a glass with a blank bottom and a flange, while the pallet is placed tightly in a cylindrical tion cavity stabilizer plastic.