WO2005017442A1

WO2005017442A1 - Partial decomposition projectile with a massive core and a core made of pressed powder

Info

Publication number: WO2005017442A1
Application number: PCT/EP2004/008589
Authority: WO
Inventors: Heinz Riess; Erich Muskat
Original assignee: Ruag Ammotec Gmbh
Priority date: 2003-08-05
Filing date: 2004-07-30
Publication date: 2005-02-24
Also published as: RU2356001C2; EP1656533B1; NO333149B1; RU2006106612A; PL1656533T3; NO20060642L; EP1656533A1

Abstract

The decomposition of a projectile in a target body, particularly a hunting projectile in wild animals after penetration therein, determines the energy output of the projectile and thereby the effect of the shot. For projectiles with double cores, the properties of the ingredients used in the cores decisively affect the decomposition and particularly the deformation behavior of the cores. According to the invention, a partial decomposition projectile comprising two cores is provided with one solid core (3) made of a material suited to said projectile and the second core (4) is made of a powder (5) consisting of metal or ceramic ingredients, said powder being pressed to become free of shrink holes, in order to improve decomposition behavior control.

Description

Partial decomposition projectile with solid core and core of pressed powder

The invention relates to a partial separation projectile according to the preamble of the first claim.

The dismantling of a bullet in the target body, especially a hunting bullet in the game after penetration into these, determines the energy output of the projectile and thus the effect of the shot. In weak game, for example, a different decomposition is required than in large game. From DE 102 39 910 A1 a decaying hunting ground is known as a mantle projectile. It may be both a Teilmantel- and a solid shell projectile, the bullet core of balls or granules, pressed voids free, consists of a metallic material. Suitable materials for the balls or granules are all materials that can be pressed into a void-free core, including lead or lead-containing alloys. For reasons of environmental protection, to advantageously avoid contamination of the soil and venison, lead-free materials are preferably used.

The compressed bullet core made of bullets or granules held by the bullet jacket breaks apart with the bullet jacket on impact in the target body differently than a solid core. The diameter of the balls or the grain size of the granules determine both the energy output, as well as the predetermined breaking points in the bullet core and thus the size of the resulting parts of his decomposition. Larger balls or granules penetrate deeper into the target medium and cause a deeper penetrating destruction channel in the tissue than a comparable number of smaller balls or granules particles. By pressing the material of the core, sharp edges are formed on the compressed balls or granule particles, which increase the effect of the splinters.

BESTATIGUNGSKOPIE Deformation projectiles are known from WO 01/20244 A1 and WO 01/20245 A1, each of which consists of two solid cores, one core being the so-called penetrator, which is arranged in the rear or in the projectile bow and the disassembly and in particular the Deformation behavior of the projectile significantly influenced. In these projectiles there is a small mass loss of the cores and a reject with a defined residual size of the projectile.

The object of the invention is to further improve the decomposition behavior of a bullet with two cores.

The object is achieved in that the projectiles according to the invention each have a solid core, i. a core made of solid material, in the rear or in the projectile bow and a second core, which is not solid, but consists of void-free pressed powder and which lies in front of or behind the massive core. The solid core and powder core can be made of different, bullet-proof materials, but in the design of the cores, the optimum center of gravity in terms of ballistics must be ensured.

The grain size of the powder depends on the desired energy release and depth effect of the individual powder particles in the target body. Large powder particles have a high depth effect, small powder particles, however, have only a low depth effect, especially in the game. The grain size of the powder is therefore, depending on the desired effect, between 50 microns and 1 mm.

Sintering materials and binders are likewise advantageous, it being possible for binders to sit between the pressed powder particles as filler material in the case of poorly compressible materials. The bullet core of powder can be pressed in the mantle or prefabricated, ie pre-pressed into the bullet shape void-free, be introduced into the mantle.

The pressing pressure depends on the grain size and is preferably between 1, 5 and 4 tons.

If a decomposition of the projectile is already desired on impact or in low penetration depth or at lower projectile speeds, predetermined breaking points in the jacket are advantageous. The predetermined breaking points extend in the axial direction and lie on the inside of the jacket, preferably in the ogival region. The dismantling of the projectile can be influenced by the number and position of the predetermined breaking points in the mantle. The closer the predetermined breaking points are to the top of the projectile, the sooner the mantle mushrooms and breaks up into splinters. Other predetermined breaking points may be on the outer circumference radially extending notches such as a sharp edge in hunting bullets. A tear-off edge, for example a sharp edge, at the transition to the solid core causes the jacket to tear off. Holding grooves, on the other hand, cause the projectile shell to be retained on the projectile core.

In particular, copper, its alloys, plated steel, soft iron and zinc-tin alloys are suitable as materials for the jacket.

As a fully jacketed bullet with a completely compressed core, it can be used as a practice floor. The advantages are free of pollutants in the prevention of lead materials. When the projectile strikes a bullet trap, the mantle mushrooms, tears and the core immediately breaks down into its individual parts, destroying all of its stored energy. As a result, damage to the ball catch are advantageously avoided.

The massive core can also consist of pressed balls or granules, with a high, void-free compression is beneficial. A solid core of sintered materials is also possible. The core of a solid shell or a partial shell projectile can also consist entirely of pressed powder. Such a projectile would be usable as a training projectile.

The described structure of the bullet core is suitable for all types of bullets that are teilzerlegbar. Due to the shown design possibilities of the core of a projectile it is possible to produce projectiles which are adapted to the respective intended use and which at each impact speed due to their coordinated

Decomposition behavior in each case achieve an optimal effect.

Reference to exemplary embodiments, the invention is explained in detail.

In a schematic representation:

Figure 1 shows a partial jacket floor as a partial decomposition projectile, half-sectioned in section, with solid tail core and a bow core of void-free pressed powder, Figure 2 is a part-shell projectile as Teilzoiegungsgeschoss, core arrangement according to Figure 1, shown on one side in section, with solid tail core and a bow core, the coat and the tail core are in one piece,

FIG. 3 shows a part-shell projectile, shown in section on one side, with a solid bow core and a rear core made of void-free compressed powder, and FIG

FIG. 4 shows a part-shell projectile as a partial decomposition projectile, core assembly according to FIG. 3, shown in section on one side, in which the shell additionally carries a scraping edge and two retaining grooves.

FIG. 1 shows a part jacket 1. In the initially undeformed, open shell casing 2, a solid core 3 is used from a suitable material for a bullet core. Then, a suitable powder 5 is filled and then compressed free of voids to the second core 4. As powder material are materials such as ball or Granulatteile, Sintered metals and binders. Subsequently, the projectile casing 1 is pulled onto the illustrated projectile shape. The projectile casing 2 is not closed in Geschossbug 6. From the opening 7 of the casing 2, the projectile core 3 protrudes and forms the projectile nose 8. In the ogival region 9, predetermined break points in the form of grooves pressed into the casing 2 run on the inside of the casing 2 in the direction of the axis 10 of the projectile 1 Rear 12 of the projectile 1 is to stabilize the projectile movement and thus to increase the precision of a cap 13.

After striking the target body, the bullet jacket opens, the compressed core disassembles into its individual parts and gives off the desired energy to the venison. Due to the compressed core, the same energy release occurs in game on each storey. The decomposition of this type of bullet is independent of the impact velocity, because the compressed core decomposes at both high and low impact velocity. For cores made of sintered materials or with binders in the pressed core, the decomposition of the core can be controlled by the sintering density or the binder fraction.

The size ratios of the two cores depend on the desired shock effect and depth effect in the game. If 50% of the core of compressed powder is present, the result is a high shock effect with depth effect, depending on the powder particle size. At 20% of the core of compressed powder produces a low shock effect with depth effect. The destruction of venison takes place depending on the powder particle size.

The embodiment of Figure 2 is similar to that of Figure 1. The difference is that the tail core 14 and the jacket 15 are integral. The jacket 15 has been formed from the material of the tail core 14 by deep drawing and surrounds the nose cone 4 made of pressed powder 5, which forms the projectile nose 8. The advantages are similar to the projectile described in FIG. The embodiment according to FIG. 3 differs fundamentally from the preceding embodiments in that the bow core is the solid core. The projectile 20 is likewise a part-shell projectile. In the initially undeformed, open shell casing 21, the core material for the tail core 22, the powder 23 is first filled, and then pressed free of voids. Thereafter, a solid core 24 is used from a suitable material for a bullet core as a bow core. Subsequently, the projectile casing 21 is pulled onto the illustrated projectile shape. The projectile casing 21 is not closed in Geschossbug 25. From the opening 26 of the casing 21, the projectile core 24 protrudes and forms the projectile tip 27. In the ogival region 28, predetermined breaking points in the form of grooves pressed into the casing 21 extend on the inside of the casing 21 in the direction of the axis 29 of the projectile Rear 31 of the projectile 20 is to stabilize the projectile movement and thus to increase the precision of a dome 32nd

The embodiment of Figure 4 is similar to that of Figure 3. The difference is that the projectile casing 21 has further features. In the cylindrical portion of the projectile 20 there is a so-called sharp edge 33, located on the outer circumference of the shell 21 notch with sharp edge on the one hand, a clean shot into the ceiling of the game on hunting and on the other hand another breaking point in the decomposition of the game Mantels 21 forms. Furthermore, there are still two holding grooves 34 on the circumference of the shell 21. By deformation of the shell of the core is fixed. In addition, these holding grooves 34 contribute to the reduction of friction in the gun barrel. The additional features of the bullet jacket are not limited to the present embodiment. The embodiments of Figures 1 to 3 may be equipped with a sharp edge and / or at least one retaining groove. With demolition edges, for example in the form of a sharp edge, and holding grooves, as described above, the disassembly of the projectile can be controlled.

Claims

claims

1. Partial decomposition projectile as a shell projectile, wherein the projectile has two cores, of which the one core is made of a material suitable for projectiles, characterized in that the second core (4; 22) of powder (5; 23) consists of metallic or ceramic materials and that the powder is pressed void-free.

2. Partial deboning projectile according to claim 1, characterized in that the massive projectile core (3) forms the rear (12) of the projectile (1).

3. Partial deboning projectile according to claim 1, characterized in that the solid projectile core (24) in the bow (25) of the projectile (20) is arranged and forms the projectile nose (27).

4. partial decomposition projectile according to one of claims 1 to 3, characterized in that the grain size of the powder (5; 23) is between 5 microns and 1 mm.

5. The partial decomposition projectile according to one of claims 1 to 4, characterized in that the solid projectile core (3; 24) and the powder (5; 23) consist of different materials.

6. partial decomposition projectile according to one of claims 1 to 4, characterized in that the powder (5; 23) is a ceramic powder.

7. The partial decomposition projectile according to claim 6, characterized in that the ceramic powder (5; 23) is aluminum oxide or zirconium oxide or silicon nitride.

8. Partial deboning projectile according to one of claims 1 to 7, characterized in that in compressed powder this is mixed with binders or with lunkerfüllendem material.

9. The subdivision projectile according to one of claims 1 to 8, characterized in that the projectile cores (3, 4; 22, 24) are prefabricated in the shells (2; 15; 21) or pressed in the sheath.

10. partial decomposition projectile according to one of claims 1 to 9, characterized in that the solid core consists of pressed balls or granules.

11. Partial deboning projectile according to one of claims 1 to 9, characterized in that the solid core consists of sintered material.

12. A partial decomposition projectile according to one of claims 1 to 11, characterized in that the projectile casing (2, 15, 21) has predetermined breaking points (11, 30).

13. The partial decomposition projectile according to claim 12, characterized in that the predetermined breaking points (11, 30) run in the direction of the projectile axis (10, 29).

14. The partial decomposition projectile according to one of claims 1 to 13, characterized in that the material of the projectile casing (2, 15; 21) is copper, its alloys, plated steel, soft iron or zinc-tin alloys.

15. Subdivision projectile according to one of claims 1 to 14, characterized in that the projectile (1; 20) has a dome (13; 32) in the rear region (12; 31).

16, subdivision projectile according to one of claims 1 to 15, characterized in that the projectile (20) has a sharp edge (33) on its outer periphery.

7. Partial disintegration projectile according to one of claims 1 to 16, characterized in that the projectile (20) holding grooves (34) on its outer periphery.