RU2133442C1 - Sporting cartridge bullet for rifled weapon - Google Patents

Abstract

FIELD: sporting cartridge bullets intended for rifled weapon used for target hitting. SUBSTANCE: bullet, having a metal envelope and a slug placed in it, is furnished with a lead ring located in the slug tail section and made of plastic. The length of the lead ring is selected within 0.5 to 1.85 of the bullet caliber, and its thickness - within 0.8 to 2.5 of the envelope wall thickness. EFFECT: reduced specific quantity of metal, improved ecology, and reduced danger of hitting of non-protected people especially at fire over long ranges, without changes of sights of standard carbines intended for hunting. 2 cl, 2 dwg

Description

 The invention relates to bullets of sporting cartridges intended for firing from a rifled weapon to hit a target.

 The solid shell-free lead bullet is known (see Prince V.M. Kirillov, V. M. Sabelnikov "Small Arms Cartridges", Central Research Institute of Information, 1980, p. 110, first paragraph of paragraph 62 and Fig. 54a).

 The disadvantages of this bullet are the following: the possibility of disruption of bullets from the rifling of the barrel of the weapon due to insufficient strength of lead; damage to the environment due to the use of lead; the relatively high risk of destruction of unprotected people and animals when firing due to the large mass of the bullet, because it consists entirely of lead and has a large kinetic energy, while the loss of speed is small.

 Some of these shortcomings were eliminated in an ordinary shell pool with a lead core (see V.M. Kirillov ... ibid., P. 110, Fig. 54b) by eliminating bullet breakdowns from rifled weapons.

 This bullet is taken as a prototype, because it is the closest to the proposed pool in terms of essential features.

 The common features of this bullet with the proposed are the following: the presence of a metal shell and a core located in it.

 The disadvantages of the prototype are: use for the manufacture of the core of scarce and expensive lead, damaging the environment and human health; a relatively large risk of defeat to unprotected people and animals due to the large mass of the bullet, because The core is made of lead.

 The aim of the invention is to reduce the metal consumption, reduce the risk of damage to unprotected people when firing at long distances and improve the environment by replacing the lead core with a lighter plastic core and placing a lead ring on its shank.

 This goal is achieved by the fact that the known bullet containing a metal shell and a core located therein is provided with a lead ring placed on the tail of the core made of plastic.

 In this case, the length of the lead ring is selected within the range of 0.5 ... 1.85 bullet caliber, and the wall thickness is within 0.8 ... 2.5 of the shell wall thickness.

 In FIG. 1 shows the proposed bullet, the main view; in FIG. 2 - the proposed bullet with a core having a head part in the form of a truncated cone.

 The proposed bullet contains a metal shell 1 with a plastic core 2 placed therein, having a head 3 and a tail 4 parts. A lead ring 5 is placed on the tail part 4 of the core 2. The shell 1 of the bullet is formed by a bend 6 to hold the elements of the bullet.

 The head part of the core can be made in the form of the inner surface of the shell (as in Fig. 1) or in the form of a truncated cone 7 (Fig. 2).

 The length of the lead ring 5 is made within 0.5 ... 1.85 caliber bullets. It was established by experiments that if the length of this ring is less than 0.5 or more than 1.85 caliber of a bullet, then the center of gravity of the bullet shifts to one side or the other from the optimal one and the bullet loses stability in flight and the normative accuracy of the battle is not ensured (deteriorates).

 The experiments also found that if the wall thickness of the lead ring 5 is less than 0.8 of the wall thickness of the shell 1, then the bullet obturation is not ensured when it passes through the rifling of the barrel of the weapon, which leads to an uneven drop in speed and deterioration of the accuracy of the battle, i.e. . to a large spread (dispersion) of holes in the target. If the wall thickness of the lead ring 5 is more than 2.5 of the wall thickness of the shell 1, then this, although it provides obturation, is impractical due to the increased consumption of lead and the shift of the center of gravity to the tail from the standard, which leads to a deterioration in the accuracy of the battle.

 The bullet works as follows.

 When a bullet passes through the rifling of the barrel of a weapon, it acquires its original speed and flies out of the barrel onto the trajectory. When meeting with a target made of paper, cardboard, plywood, this bullet leaves a clear hole, by which the result of shooting is estimated by the accuracy of the battle.

 When meeting a metal target, the shell of the bullet is deformed and leaves only an imprint on it, and the plastic core is also deformed.

 The use of the invention allows to reduce metal consumption, improve the environment and reduce the risk of damage to people, especially when firing at long distances.

 These bullets can be used without modifying the sights of the standard carbines intended for hunting, in case of firing at targets. This ensures the pairing of the flight of the proposed bullets with bullets of hunting cartridges, but with a lower recoil momentum.

Claims (2)

 1. A bullet of a sports cartridge for a rifled weapon, containing a metal shell and a core located in it, characterized in that it is equipped with a lead ring placed on the tail of the core made of plastic.  2. The bullet according to claim 1, characterized in that the length of the lead ring corresponds to 0.5 ... 1.85 caliber of the bullet, and its thickness is 0.8 ... 2.5 the wall thickness of the shell.

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