RU2235278C1 - Bullet of a hunting cartridge - Google Patents

Abstract

FIELD: mechanical industry; production of bullets for hunting cartridges.

SUBSTANCE: the invention is dealt with the field of production of bullets for the hunting cartridges intended for fire from the rifled weapon, especially with the bullets becoming deformed at hit in the tissues of animals. The bullet contains a mantle with a central core located in it and has a front part made as a single body with one which was integral with a hollow nozzle having a blunt vertex, and also a master and tail parts. At that on the front part of the mantle there are elements of slackening. The tail part of the bullet has a sphere-shaped recess. The nozzle height corresponds to 0.075...0.090 of " L", where "L" is the height of the bullet. The radius of the sphere-shaped recesses corresponds to 0.965...1.000 of "d", and the height of the recess corresponds to 0.125... 0.175 of "d", where "d" is the diameter of the bullet. Use of an offered bullet allows to prevent its break-up in the barrel and in flight at the expense of provision of stability of positioning of a center of gravity and a bending up of the mantel edge.

EFFECT: the offered bullet allows to prevent its break-up in the barrel and in flight due to positioning of a center of gravity and a bending up of the mantel edge.

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Description

The invention relates to bullets for hunting cartridges intended for firing from rifled weapons, especially to bullets that deform when exposed to animal tissue.

Known bullet according to the patent of Russian Federation No. 2009445, containing the shell and placed in it a shirt and core. The head part of the bullet is made in one piece with a hollow tip blunted over a sphere. Longitudinal grooves are made on the inner surface of the head of the shell, and the shell is open on the tail side.

This bullet provides a range of reliable destruction of the target (animal) due to the improvement of aerodynamic qualities, but with an increase in the length of the bullet head relative to the caliber, it loses an advantage over bullets having a short head length relative to the caliber at relatively short ranges for especially large and dangerous animals, t .to. a bullet with high energy properties, providing a reliable defeat, should have a small head length relative to the caliber.

In addition, a bullet having an open shell on the tail side is prone to dismantling during flight and, due to the unevenness of the core landing depth in the shell, the quality of firing at dispersing bullets along the trajectory for a group of shots decreases.

Some of the shortcomings of this bullet were eliminated in the pool of a hunting cartridge for rifled weapons, known according to the patent of the Russian Federation No. 2087843. It contains a shell with a core placed in it, having a head part made in one piece with a hollow tip having bluntness at the apex, and leading and tail parts, and longitudinal grooves (weakening elements) are made on the inner surface of the head part of the shell.

This bullet expands the possibilities of shooting due to the presence of a hollow tip and a weakened warhead.

But at the same time, it has the following disadvantages:

- the tendency of the bullet to dismantle when leaving the barrel and in flight due to the fact that the edge of the shell is open and therefore powder gases can penetrate between the shell and the core during a shot;

- poor accuracy of the battle due to the uneven depth of landing of the core in the tail of the bullet, leading to a displacement of the center of gravity.

The objective of the invention is to improve the accuracy of the battle by ensuring the rational placement of the center of gravity of the bullet with the help of a spheroidal recess in the tail of the bullet and selecting the height of the tip, as well as eliminating the possibility of dismantling the bullet when exiting the gun barrel and in flight.

This object is achieved by the fact that in the pool of a hunting cartridge for rifled weapons, containing a shell with a core placed in it, having a head part made in one piece with a hollow tip having a dullness at the apex, as well as a leading and a tail part, and on the head part shells are made weakening elements, the tail of the bullet is made with a sphere-shaped recess, and the height of the tip corresponds to 0.075 ... 0.090 α, where α is the height of the bullet.

The radius of the sphere-shaped recess corresponds to 0.965 ... 1.000 d, and the height of the recess corresponds to 0.125 ... 0.175 d, where d is the diameter of the bullet.

The sketch shows a general view of the proposed bullet with grooves (loosening) on the inner surface of the shell.

The bullet contains a shell 1, in which the core 2 is placed. The core 2 is made of soft material, such as lead. The shell 1 is made with elements of attenuation 3. The elements of attenuation 3 can be in the form of longitudinal grooves made on both the inner and outer surfaces of the shell 1. The head part 4 of the shell 1 is made in one piece with a hollow tip 5 having a blunt tip. The bullet has a leading 6 and tail 7 parts. The tail part 7 is made in the form of a truncated cone with the base towards the leading part of the bullet by bending the edges of the shell 1 with the formation of a sphere-shaped cavity 8, the radius R of which corresponds to 0.965 ... 1,000 d, and the height h of the sphere-shaped cavity 8 corresponds to 0.125 ... 0.175 d, where d is the diameter of the bullet. The height of the hollow tip 5 corresponds to 0.075 ... 0.090 α. The height of the hollow tip with the head corresponds to 0.59 ... 0.71 α, where α is the length of the bullet.

When the height of the sphere-shaped recess 8 is less than 0.125 of the diameter of the bullet, the accuracy of the battle deteriorates due to the displacement of the center of gravity to the tail of the bullet.

When the height of the sphere-shaped recess 8 is greater than 0.175 of the diameter of the bullet, the deformation force of the edge of the shell and core increases and the shape of the conical tail of the bullet is distorted, which leads to a deterioration in the accuracy of the battle.

When the height of the tip 5 is less than 0.075 of the length of the bullet, the length of the leading part of the bullet increases, which leads to an increase in the force of deformation of the bullet by rifling the barrel, and therefore to disrupt the ballistics of the shot and worsen the accuracy of the battle.

With a tip height of more than 0.090 bullet lengths, the height of the warhead decreases, which leads to a displacement of the center of gravity of the bullet from the norm and worsens the accuracy of the battle.

When the radius of the sphere-shaped recess at the end of the tail of the bullet is less than 0.965, the accuracy of the battle deteriorates due to the displacement of the center of gravity to the tail of the bullet.

When the radius of the sphere-shaped recess at the end of the rear part of the bullet exceeds 1.0, the accuracy of the battle deteriorates due to the displacement of the center of gravity to the head of the bullet.

When the height of the bullet head with a tip is less than 0.59 bullet lengths, the length of the leading part of the bullet increases, which leads to an increase in the deformation of the bullet by rifling of the barrel channel, and therefore to a violation of the ballistics of the shot and the deterioration of the accuracy of the battle.

When the height of the bullet head with a tip of more than 0.71 bullet lengths, the leading part of the bullet decreases, which leads to a loss of stability of the bullet in flight and, consequently, to a deterioration in the accuracy of the battle.

The bullet works as follows. When a bullet encounters an object of damage, the shell 1 is deformed due to the lead core 2 and grooves 3 on the inner surface of the head of the shell 1, and due to the tip 5, a small diameter hole is punched in the skin of the animal, through which the bullet passes without damaging the skin of the animal, and after that it is deformed in the tissues of the animal.

Experienced firing of 7.62 mm caliber bullets found that the maximum norm of the dispersion cross-section is reduced from 14 to 12 cm at a distance of 100 m.

Thus, the use of the proposed solution in comparison with the prototype will improve the accuracy of the battle and will eliminate the dismantling of the bullet in the barrel and in flight by ensuring the stability of the center of gravity and bending the edges of the shell of the bullet.

Claims (2)

1. A bullet of a hunting cartridge for a rifled weapon, comprising a shell with a core placed in it, having a head made in one piece with a hollow tip having a blunt at the apex, as well as a leading and a tail, weakening elements made on the head of the shell, characterized in that the tail of the bullet is made with a sphere-shaped recess, and the height of the tip corresponds to 0.075 ... 0.090 L, where L is the height of the bullet. 2. The bullet according to claim 1, characterized in that the radius of the sphere-shaped recess corresponds to 0.965 ... 1.000 d, and the height of the recess corresponds to 0.125 ... 0.175d, where d is the diameter of the bullet.