WO2001002791A2 - Projectile a deformation - Google Patents

Projectile a deformation Download PDF

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Publication number
WO2001002791A2
WO2001002791A2 PCT/EP2000/005654 EP0005654W WO0102791A2 WO 2001002791 A2 WO2001002791 A2 WO 2001002791A2 EP 0005654 W EP0005654 W EP 0005654W WO 0102791 A2 WO0102791 A2 WO 0102791A2
Authority
WO
WIPO (PCT)
Prior art keywords
projectile
deformation
break
head
open
Prior art date
Application number
PCT/EP2000/005654
Other languages
German (de)
English (en)
Other versions
WO2001002791A3 (fr
Inventor
Rudolf Sigl
Gerhard Gruber
Metin Rona
Original Assignee
Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik filed Critical Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik
Priority to AU59751/00A priority Critical patent/AU5975100A/en
Publication of WO2001002791A2 publication Critical patent/WO2001002791A2/fr
Publication of WO2001002791A3 publication Critical patent/WO2001002791A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/34—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect expanding before or on impact, i.e. of dumdum or mushroom type

Definitions

  • the invention relates to a deformation projectile according to the preamble of the first claim.
  • Projectiles used for hunting are matched to the game to be hunted. Cutting floors and partial cutting floors are completely broken down into fragments when they hit the game or apart from a defined residual body.
  • the projectile body should be deformed with as little splintering as possible.
  • the construction of the projectile should largely prevent splinters from breaking off.
  • the rest of the body should have a sufficient depth effect as a penetration body by striking at least to the middle of the body, better still, into the opposite half of the body and becoming effective there.
  • Conventional deformation storeys are, for example, full storeys with so-called chicanes. These are, for example, grooves cut inside or outside or an expansion channel located centrally in the projectile body.
  • a deformation projectile is known from the article “Geunterportrait” in the magazine “Wild und Hund”, 1998, Issue 26, page 48. It is a full floor. The disassembly is achieved by a projectile channel running along the axis with a cross section of 0.6 mm in the head region of the projectile body. Elaborate tools are required to manufacture this projectile.
  • the object of the present invention is to present a deformation projectile which is easy to manufacture, the readiness for deformation is only slightly dependent on the impact speed and which undergoes rapid deformation upon impact on the target body with as little splinter loss as possible. Another goal is the exclusion of toxic loads on the target body from the projectile material.
  • the deformation projectile according to the invention consists of a jacket-free metal body with a front part that tapers towards the top of the projectile and a rear, essentially cylindrical part.
  • a cave In the front, tapering part of the floor, a cave extends in the direction of its longitudinal axis, the cross-section of which gradually narrows from the top.
  • the transition from one deformation stage to the next deformation stage with a smaller diameter is conical with acute cone angles. The more acute the cone angles, the lower the resistance to the penetrating tappet.
  • the top of the projectile is opened by a ram formed, which closes the cave entrance.
  • the ram tappet consists of a head that closes the cave entrance and is connected to a shaft that extends into the cave.
  • a targeted deformation is achieved with the projectile according to the invention.
  • the ram tappet which closes the cave entrance, is when it hits the
  • Projectile body broken up into flags from the entrance of the cave. Depending on the speed of impact, these are bent at the steps, bent against the projectile movement and rolled up. The projectile is deformed into a mushroom-like shape. The deformation of the projectile body stops when the energy acting on the projectile body is no longer sufficient for this. If the deformed projectile body still has a sufficiently high kinetic energy, it emerges from the target body and leaves a reject which increases in game
  • the cavity in the projectile body is divided into two areas, a first area with graduated diameters, the deformation levels, and a second area for receiving the stem of the tappet.
  • the shaft of the deforming break-off plunger is guided in this second region so that it can retreat in the direction of the longitudinal axis of the projectile body.
  • the length of the shaft and the length of the second area of the cave are coordinated. The free path that the shaft can travel in the second part of the cave determines when the ram tappet and thus the deformation of the projectile body is stopped.
  • the advantage of a double-conical shape of the head of the ram tappet is that the part of the head facing away from the shaft, which closes the cavity, due to its taper improves the aerodynamics of the projectile body.
  • the conical part of the head facing the shaft acts like a wedge that widens the cave wall, the front, tapering part of the projectile body, pushes it apart and tears it into flags.
  • the plunger is made of a softer material than the projectile body.
  • the projectile body can consist, for example, of tough metals such as copper, iron and the alloys of these metals
  • the materials of the ram tappet are softer, for example tin, zinc, aluminum and plastics, for example made of polymers or polycarbonate.
  • the length of the cavity, the number of deformation stages, their respective lengths, the gradations of the diameter, the taper of the transition areas between the diameter stages, the shape of the head of the break-open ram and the length of the shaft can affect the nature of the target body and the achievable impact velocity of the projectile be coordinated and thus contribute in an advantageous manner to the formation of a defined projectile residual body with the desired deformation. Since the impact speed is a decisive factor for the deformation of a projectile, the construction of the projectile must be such that the deformation reaches its greatest extent in the correct place in the animal body, for example earlier in roe deer, later in large hoofed game.
  • the shape of the head of the break-open ram also influences the deformation behavior of the projectile body. For example, a hole drilled in the tip of the projectile accelerates more or less the deformation of the projectile head and thus the energy release into the game body, the so-called Projectile effect, which is the more advantageous, the lower the speed of impact of the projectile. If the tip of the head has a recess, be it a tapered funnel or a trough-shaped depression, the head of the ram tappet is expanded prematurely and, as a result, the tapering part of the projectile body is also torn open in the longitudinal direction.
  • tip of the head of the break-open plunger has a flat end face, this leads to a strong deformation of the head when it hits the target body and thus to an abrupt widening of the diameter of the plunger and, as a result, to the tapering projectile part bursting open immediately.
  • tip of the head of the break-open plunger has no recess and, on the other hand, tapered or rounded, it will initially penetrate the target body more easily and only achieve the required diameter expansion to deform the projectile body due to the increasing pressure on the head.
  • the shape of the tip of the head of the break-open plunger is intended to give the projectile good aerodynamic properties on the one hand, but on the other hand also to contribute to a projectile deformation that meets the requirements of the projectile. For this reason, the cone angle of the tip of the head is approximately between 35 ° and 65 °. A cone angle of approximately 40 ° has proven to be advantageous.
  • the cone angle of the shaft part of the head has a significant part in the deformation behavior of the projectile body. If the cone angle is too acute, the wedge effect of the ram tappet is too low and if the impact speed is high there is a risk that the tappet will be pressed into the cavity without performing the expected deformation work. If, on the other hand, the cone angle is too large, the resistance to the break-open plunger is too great at a low impact speed, and there is also insufficient deformation of the projectile body. For this reason, the cone angle on Shank part of the head must be matched to the gradation of the diameter and the number of diameter steps.
  • the cone angle of the shaft part of the head is approximately between 90 ° and 130 °. A cone angle of approximately 120 ° has proven to be advantageous.
  • the projectile body can have a coulter edge.
  • a coulter edge on the floor ensures a clean shot, since the blanket of the game is not torn, but is punched out when shot.
  • the entry opening which is approximately the size of a caliber, therefore ensures that the wound provides sweat as soon as it is inserted.
  • At least one relief groove for reducing the friction in the weapon barrel is arranged on the cylindrical part of the projectile body.
  • the number of relief grooves depends on the size of the projectile body intended.
  • the projectile body and the ram tappet are made of a lead-free material. Since lead and its alloys are considered toxic, the tissue interspersed with lead splinters is only considered edible to a limited extent. If, on the other hand, materials for the projectile and the ram tappet are used according to the invention, such as plastics, and the metals copper, tin, zinc, iron, tungsten, titanium, silver, aluminum, tantalum, vanadium and possible alloys of the metals listed, the is in the body penetrating the tissue is harmless and does not cause any toxic contamination of the tissue.
  • FIG. 1 shows a deformation projectile according to the invention with a ram tappet, the tip of which is rounded
  • Figure 2 shows a ram tappet with a conical recess in the
  • Figure 3 shows a break-open plunger, the tip of the head being trough-shaped
  • Figure 4 shows a break-open ram with a flat end face of the head.
  • a deformed projectile 1 is shown in section on a greatly enlarged scale, which is composed of a projectile body 2 and a ram tappet 3.
  • the projectile body 2 consists of a front, tapering part 4, an adjoining, essentially cylindrical part 5 and a short rear cone extension 6.
  • the tapering part 4 ends in a coulter edge 7. It is created by a circumferential recess in the projectile body.
  • the reason 8 of the puncture is rounded.
  • the wall 10 rises at an angle.
  • the wall 11 runs perpendicular to the outer contour of the projectile 1. This creates the sharp edge 7, the sharp edge. When it passes through the deer ceiling, it creates a clean bullet hole with a clearly defined edge.
  • the cylindrical part 5 of the projectile body 2 has two relief grooves 12 for reducing the friction in the weapon barrel.
  • the break-open ram 3 is composed of a head 13 and an adjoining shaft 14.
  • the shaft 14 is cylindrical in the present exemplary embodiment.
  • the head 13 is divided into two conical halves, the tip 15 pointing in the direction of flight 9 and a conical part 16 facing the shaft 14.
  • the tip 15 has a rounded shape 17.
  • the tip 15 of the projectile 1 is thus formed by the head 13 of the ram tappet 3.
  • the cone angle 38 of the tip 15 is 40 ° in the present exemplary embodiment.
  • the head 13 closes a cavity 18 in the front, tapering part 4 of the projectile body 2. This cavity 18 extends centrally to the longitudinal axis 19 of the projectile 2. It is divided into two regions 20 and 21, the first region 20 having graduated diameter ranges and the second region 21 is a 5 cylindrical bore for receiving the cylindrically shaped shaft 14 of the break-open ram 3.
  • the first region 20 of the cavity 18 has four stepped diameter regions 22, 23, 24 and 25.
  • the gradations are the same length and decrease in diameter by the same amount.
  • 10 gradations can also be of different lengths and the diameter can also be decreased in different sizes.
  • the diameter ranges 22 to 25 are connected to each other by conical transition areas 26, 27 and 28. These transition areas are of equal length in the present exemplary embodiment. In addition, they all have the same cone angle
  • the first region 20 also has a conical transition 30 to its second region 21.
  • the entrance 31 to the cave 18 also opens conically.
  • the first graduated diameter region 22 adjoins it.
  • the cave entrance 31 is closed by the conical part 16 of the head 13 of the ram tappet 3.
  • the cone angle 32 of the conical part 16 of the head 13 closing the cave entrance 31 is an obtuse angle, here 120 °, in contrast to the acute cone angle
  • the tip 15 of the break-open plunger 3 first penetrates into the target body. The more acute the cone angle 38, the later the deformation occurs.
  • the conical part 16 of the head 13 of the break-open ram 3 acts like a wedge.
  • the pressure that builds up on the ram tappet 3 pushes the ram tappet 3 into the cavity 18.
  • the cave wall, which is still thin in the area of the cavity entrance 31, is expanded. If the yield strength of the material is exceeded, the material first tears open in the longitudinal direction due to physical laws and forms so-called flags, which bend backwards against the direction of movement 9 of the projectile 1 upon further penetration into the target body and mushroom the projectile body 2 by rolling it up.
  • the graduated diameter ranges 22 to 25 facilitate the tearing open of the projectile body 2 in flags and their twisting and mushrooming under the pressure acting upon penetration into the target body.
  • the mushrooming is a rolling up of the flags in the opposite direction to penetrate the target body.
  • the bullet channel is continuously expanded upon penetration into the target body, releasing the projectile energy.
  • the projectile effect here is not based on the destructive force of the fragments, but essentially on the force of the impact of the projectile, caused by its deformation in the target body. Chipping should be as minimal as possible.
  • the remaining body of the projectile should penetrate as deeply as possible into the target body, possibly penetrating it through the exit on the other side of the game, so that a rejection arises, even if it has already penetrated parts of the skeleton on the way through the animal body ,
  • the extent of the deformation of the projectile body 2 can be controlled by the length of the shaft 14.
  • the shaft 14 not only serves to guide the break-open plunger 3 by being guided in the second region 21 of the cavity 18, but also determines the point in time when it hits the bottom 34 of the bore 21. From this point on, the ram tappet 3 can no longer be moved, but only plastically deformed. It only causes the projectile body to deform until it is no longer possible to deform it.
  • Figures 2 to 4 show other possible forms of formation of a ram tappet.
  • the cone angle 38 of the tip 15 is the same in all exemplary embodiments and is 40 °. In the shape of the tip 15 in a rounded shape 17 shown in FIG. 1, the projectile will first penetrate into the target body and only then will the deformation be initiated due to the deformation of the projectile tip 13.
  • the tip 15 of the break-open tappet 3 in FIG. 2 has a conical recess 35 which is arranged centrally to the longitudinal axis 19.
  • the tearing of the material is promoted when the head 13 hits a target body.
  • the deformation of the projectile body is initiated much earlier than is the case, for example, in the embodiment of FIG. 1.
  • the tip 15 of the break-open ram 3 is shaped substantially differently.
  • the tip 15 of the head 13 is formed by a flat end face 37.
  • a very strong compression of the head 13 is initiated.
  • a deformation of the projectile body is quickly caused essentially due to the material mass of the ram 3 ramming.
  • the deformation of the projectile body will occur much earlier than in the embodiment according to FIG should. The deformation of the projectile body already occurs when the projectile hits the target body.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Catching Or Destruction (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

La construction d'un projectile à déformation, notamment de sa tête, influence considérablement la déformation dudit projectile. Dans le cas de munitions utilisées pour la chasse, la construction, la forme et la taille du projectile à déformation doivent être adaptées en fonction du type de gibier. Pour cette raison, l'invention est caractérisée en ce que le projectile (1) est constitué d'un corps de projectile dépourvu de gaine, en ce qu'une cavité (18) s'étend dans la partie avant (4) de section décroissante du corps de projectile (2), de façon centrée par rapport à l'axe longitudinal (19) du projectile (1), en ce que cette cavité (18) présente un rétrécissement par zones diamétrales en étages (22, 23, 24, 25) en partant de son entrée (31), et en ce qu'un poussoir perforateur (3) forme la pointe du projectile (15) et est constitué d'une tête (13) qui ferme l'entrée de cavité (31) et d'une tige (14) qui s'étend dans la cavité (18).
PCT/EP2000/005654 1999-07-01 2000-06-20 Projectile a deformation WO2001002791A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU59751/00A AU5975100A (en) 1999-07-01 2000-06-20 Deformation projectile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999130473 DE19930473A1 (de) 1999-07-01 1999-07-01 Deformationsgeschoß
DE19930473.4 1999-07-01

Publications (2)

Publication Number Publication Date
WO2001002791A2 true WO2001002791A2 (fr) 2001-01-11
WO2001002791A3 WO2001002791A3 (fr) 2002-10-31

Family

ID=7913379

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/005654 WO2001002791A2 (fr) 1999-07-01 2000-06-20 Projectile a deformation

Country Status (3)

Country Link
AU (1) AU5975100A (fr)
DE (1) DE19930473A1 (fr)
WO (1) WO2001002791A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001067030A1 (fr) * 2000-03-07 2001-09-13 Dynamit Nobel Ammotech Gmbh Balle deformable pauvre en substances nocives, de preference pour des armes de poing
WO2001088460A1 (fr) * 2000-05-15 2001-11-22 Ruag Munition Projectile a deformation partielle de petit calibre et procede permettant de le produire
CZ301793B6 (cs) * 2004-07-19 2010-06-23 Sellier & Bellot A. S. Netoxická strela s rízenou deformací
RU178238U1 (ru) * 2017-01-19 2018-03-28 Валерий Тигранович Цаканян Снаряд для тира

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1502074B1 (fr) * 2002-04-30 2009-11-18 RUAG Ammotec GmbH Projectile a decomposition partielle et a deformation a point d'impact identique et procede de manufacture d'un tel projectile
BE1015436A3 (fr) * 2003-03-24 2005-04-05 Denis Jean Paul Louis Projectile d'arme a feu.
DE10347057A1 (de) * 2003-10-07 2005-05-12 Rupert Straus Allzweckgeschoss
FR2927694B1 (fr) * 2008-02-14 2012-12-07 Jean Pierre Denis Munition
PL3105537T3 (pl) 2014-02-10 2018-10-31 Ruag Ammotec Gmbh Bezołowiowy, odkształcalny, częściowo fragmentujący pocisk o określonym zachowaniu przy odkształceniu grzybkowatym i fragmentacji
US10101137B2 (en) * 2017-01-12 2018-10-16 Sig Sauer, Inc. Heat-mitigating nose insert for a projectile and a projectile containing the same
US10119797B2 (en) * 2017-02-27 2018-11-06 Sig Sauer, Inc. Cap-based heat-mitigating nose insert for a projectile and a projectile containing the same

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DE1905294B2 (de) * 1969-02-04 1976-01-29 Dynamit Nobel Ag, 5210 Troisdorf Geschoss
DE2530155A1 (de) * 1975-07-05 1977-02-03 Dynamit Nobel Ag Geschoss, insbesondere fuer faustfeuerwaffen und maschinenpistolen
GB1590600A (en) * 1976-10-30 1981-06-03 Dynamit Nobel Ag Bullet
DE2839372A1 (de) * 1978-09-09 1980-03-27 Schirnecker Hans Ludwig Geschoss, insbesondere fuer jagdzwecke
DE2843167A1 (de) * 1978-10-04 1980-04-17 Schirnecker Hans Ludwig Geschoss, insbesondere jagdgeschoss
DE3064795D1 (en) * 1979-03-10 1983-10-20 Schirnecker Hans Ludwig Projectile, e.g. for hunting, and method of manufacturing same
PT77697B (fr) * 1982-11-24 1986-02-12 Ladriere Serge Projectile perfectionne destine a etre decharge par des armes a feu
JPS61250500A (ja) * 1985-04-27 1986-11-07 真木　長俊 散弾銃用スラグ装弾に用いる充填片
US4665827A (en) * 1985-12-24 1987-05-19 Ellis Ii Robert K Expandable bullet
FR2771167B1 (fr) * 1997-11-20 1999-12-10 Giat Ind Sa Balle expansive

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001067030A1 (fr) * 2000-03-07 2001-09-13 Dynamit Nobel Ammotech Gmbh Balle deformable pauvre en substances nocives, de preference pour des armes de poing
JP2003526073A (ja) * 2000-03-07 2003-09-02 デイナミート ノーベル アモテック ゲゼルシャフト ミット ベシュレンクテル ハフツング 有害物質を減少した、好ましくは小銃用の変形可能な銃弾
AU779133B2 (en) * 2000-03-07 2005-01-06 Ruag Ammotec Gmbh Reduced-contaminant deformable bullet, preferably for small arms
WO2001088460A1 (fr) * 2000-05-15 2001-11-22 Ruag Munition Projectile a deformation partielle de petit calibre et procede permettant de le produire
JP2003533667A (ja) * 2000-05-15 2003-11-11 ルアグ・ムニツイオーン 小口径の変形弾丸およびそれを製造する方法
KR100709299B1 (ko) * 2000-05-15 2007-04-20 루아그 암모텍 소구경 변형 발사체 및 그 생산 방법
CZ301793B6 (cs) * 2004-07-19 2010-06-23 Sellier & Bellot A. S. Netoxická strela s rízenou deformací
RU178238U1 (ru) * 2017-01-19 2018-03-28 Валерий Тигранович Цаканян Снаряд для тира

Also Published As

Publication number Publication date
AU5975100A (en) 2001-01-22
WO2001002791A3 (fr) 2002-10-31
DE19930473A1 (de) 2001-01-04

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