EP2719993A2 - Projectile de chasse à expansion - Google Patents

Projectile de chasse à expansion Download PDF

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Publication number
EP2719993A2
EP2719993A2 EP13156625.9A EP13156625A EP2719993A2 EP 2719993 A2 EP2719993 A2 EP 2719993A2 EP 13156625 A EP13156625 A EP 13156625A EP 2719993 A2 EP2719993 A2 EP 2719993A2
Authority
EP
European Patent Office
Prior art keywords
projectile
hunting
guide
projectile according
tip
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP13156625.9A
Other languages
German (de)
English (en)
Other versions
EP2719993A3 (fr
Inventor
Frank Mayer
Karl K. Mayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2719993A2 publication Critical patent/EP2719993A2/fr
Publication of EP2719993A3 publication Critical patent/EP2719993A3/fr
Withdrawn legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/02—Driving bands; Rotating bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/02—Bullets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/025—Cartridges, i.e. cases with charge and missile characterised by the dimension of the case or the missile

Definitions

  • the invention relates to an expansion hunting bullet according to the preamble of patent claim 1.
  • Hunting projectiles are known from the prior art, which have a one-piece projectile body.
  • an axially extending recess is arranged, which may be designed to be open either in the manner of a hollow tip or may be closed with a lead of lead. If the bullet strikes its target, in particular a game body, the bullet deforms in such a way that the bullet tip mushs up and the projectile thus increases its effective diameter.
  • the projectile body of these known projectiles has a guide region whose diameter is greater than the field diameter of the respective caliber. This results in a high pressure in the barrel, which can lead to problems such as reducing the muzzle velocity, high dispersion and high wear of the inner race, in particular by deposits inside and outside the ballistic. To this To reduce the problem, it is also known to provide the projectile body with circumferential guide grooves.
  • the expansion hunting bullet according to the present invention initially comprises an integral projectile body having a guide portion, a head portion tapering forwardly from the guide portion, and a rear portion extending rearward from the guide portion.
  • a recess extending axially from the tip towards the guide region is also provided in the head region.
  • the guide region of the projectile is cylindrical and has on its outer side at least three axially spaced guide or sealing rings.
  • the outer diameter of the guide region substantially corresponds to the field diameter and the outer diameter of the guide or sealing rings corresponds to the tensile diameter of the respective caliber.
  • the number of guide or sealing rings is initially basically arbitrary and depends essentially on the caliber, the projectile weight and, associated therewith, on the length of the projectile and in particular the length of the guide area. However, according to a particularly preferred embodiment, three to five of the guide or sealing rings are provided.
  • the width of the guide or sealing rings is between 0.2 and 1.5 mm, in particular between 0.4 and 1 mm.
  • the preferred embodiment of the invention is the sum of the axial widths of the different number of guide or sealing rings for a particular caliber at different projectile weights is substantially constant.
  • the running pressure which is determined in the projectile of the present invention so essentially by the guide or sealing rings, and thus the internal ballistics substantially unchanged, so that the Treffigelage at a given distance, for example, the most favorable shotgun distance (GEE) or 100 m, remains virtually unchanged.
  • the projectile body of a projectile of the invention in a first known manner, a channel-like towards the top open recess on.
  • the axially extending recess is designed as a stepped bore.
  • the diameters of the individual sections or stages of the bore decrease from the tip towards the rear. Due to the axial length of the individual sections and the differences in diameters, the expansion behavior, i. especially the fungus, be influenced in a simple manner. In this case, an increase in the overall diameter of the projectile can be achieved to 2 to 3 times the original projectile diameter. Preferably, two to four sections or stages are used.
  • the axially front pointing to the top of the projectile end of the recess, in particular the first stage of the stepped bore provided with a plurality of axially extending notches, which serve as predetermined breaking points.
  • Such notches can be realized, for example, by pressing a square or polygonal punch with ground edges from the outside into the hole after the production of the holes, the ground edges forming notches in the inner wall of the hole.
  • a projectile nose In order to further influence the expansion or Aufpilzung of the projectile can be used according to a further embodiment of the invention in the recess, in particular the first stage of the stepped bore a projectile nose.
  • This bullet tip is preferably made of a material of lower hardness than the projectile body and is used when striking the bullet on the target as a spreading agent for triggering and influencing the expansion process.
  • the projectile tip is made of aluminum or tin, an aluminum or tin alloy or plastic.
  • the shape of the projectile tip is fundamentally arbitrary and depends both on the desired external ballistic properties and on the desired impact effect. For example, for a shot at long distances, a comparatively sharp bullet head will be advantageous; for a high energy input with a shot at heavy game a flat bullet tip is an advantage.
  • the projectile nose is designed as a round, partial round or flat tip.
  • the projectile body itself is preferably made of a high toughness material such as copper, a copper alloy, a brass alloy such as Tombak MS-95 or MS-70, bronze, zinc or zinc alloy.
  • the tail of the hunting bullet according to the present invention can be formed in the simplest way as a flat tail, that is to say as a flat end of the projectile body.
  • the rear region is tapered towards the rear, in particular in the manner of a "torpedo" or “boat tails” formed.
  • the shape of the head portion of the projectile of the invention depends essentially on the external ballistics, in particular the aerodynamics.
  • the head portion of the projectile body is formed ogival in its outer contour.
  • the projectile shown has a one-piece projectile body 1 made of copper.
  • the projectile body consists of three areas, namely a cylindrical guide area 2, a forwardly ogival tapered head area 3 and a rear area 4.
  • the guide portion 2 has on its outside three axially spaced guide or sealing rings 5, which rotate closed the annular guide area closed.
  • the diameter D1 of the guide area corresponds to the field diameter of the barrel of a weapon, not shown; the diameter D2 the train diameter of the barrel.
  • the rear region 4 is tapered backwards in the manner of a “torpedo” or boat tails "formed.
  • an axially extending recess 6 is formed, which is open towards the projectile nose. It is thus in the in Fig. 1 illustrated embodiments to so-called hollow point bullet.
  • the projectile represented in its basic structure corresponds to the projectile Fig. 1 ,
  • the rear region 4 and the guide region 2 of the projectile body 1 with the guide or sealing rings 5 identical to the features of the same numbering in Fig. 1
  • the recess 6 which is open towards the projectile tip is designed as a stepped bore with two sections 6a and 6b arranged axially one behind the other.
  • the two sections 6a and 6ba have both a different diameter and a different axial length.
  • the first section 6a of the recess 6 is provided with a total of four notches 7 symmetrically arranged symmetrically with respect to the recess 6, which locally weaken the wall thickness of the projectile head 3.
  • the opening of the recess 6 of the projectile head 3 is closed by a bullet tip 8 made of aluminum or tin.
  • This projectile tip has a pin-like region 8a, which is inserted into the section 6a of the recess 6 substantially positive fit, and a cap-like partially round head 8b, which forms the actual projectile nose.
  • the projectile nose 8 acts as a spreading element and forces the collar-side ends of the outer wall of the portion 6a radially outward. Due to the four notches 7, the outer wall ruptures to form four flag-like material areas, with these flags becoming more and more mushy with increasing penetration into the target body and rolling up into a snail-shaped or horn-shaped horn.
  • This controlled expansion of the projectile is supported and reinforced by the step-shaped structure of the recess 6 and causes the cross-section of the projectile is significantly increased, whereby the ballistic effect is significantly enhanced in the target.
  • the head of the projectile is again formed ogival, but does not run as sharply as the bullet after Fig. 1 ,
  • Fig. 3 illustrated embodiment has basically the same structure as the two projectiles described above. However, it is a heavier bullet of the same caliber with a longer cylindrical guide portion 2, which auground find this larger length four guide or sealing rings use.
  • the axial width of the guide or sealing rings 5 this Embodiment is smaller than the axial width of the guide or sealing rings 5 of the embodiment according to Fig. 2 , wherein the axial widths are selected so that the sum of the widths of all the guide or sealing rings of each projectile are the same. This results irrespective of the length and weight of the projectile caliber-related equal inside ballistic conditions, so that there is a same point of impact of the projectiles.
  • the recess 6 is according to the embodiment Fig. 3 also formed as a stepped bore with three sections 6a, 6b and 6c. This results in an increased expansion of the floor up to 3 times the starting floor cross-section.
  • the embodiment according to Fig. 4 differs from the embodiment according to Fig. 3 merely in that with the same caliber an even longer guide area 2 with an overall higher bullet weight is used.
  • a total of five guide or sealing rings 5 are arranged on the cylindrical guide portion 2 in this embodiment, each in turn a smaller axial width than the guide or sealing rings 5 after Fig. 3 have, in turn, the sum of the widths is equal.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Golf Clubs (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP13156625.9A 2012-02-23 2013-02-25 Projectile de chasse à expansion Withdrawn EP2719993A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012003682.5A DE102012003682A1 (de) 2012-02-23 2012-02-23 Bleifreies Expansions-Jagdgeschoss mit einstückigem Geschoss-Körper und unterschiedlicher Zahl von Führungs- bzw. Dicht-Ringen sowie verschiedenartig ausgebildeten Geschoss-Köpfen

Publications (2)

Publication Number Publication Date
EP2719993A2 true EP2719993A2 (fr) 2014-04-16
EP2719993A3 EP2719993A3 (fr) 2015-07-29

Family

ID=47900553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13156625.9A Withdrawn EP2719993A3 (fr) 2012-02-23 2013-02-25 Projectile de chasse à expansion

Country Status (2)

Country Link
EP (1) EP2719993A3 (fr)
DE (1) DE102012003682A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224715B4 (de) 2014-10-29 2019-07-11 Metallwerk Elisenhütte GmbH Unterschallpatrone mit einem Geschoss sowie Geschoss für eine solche
US11313657B1 (en) * 2016-11-14 2022-04-26 Erik Agazim Multi-piece projectile with an insert formed via a powder metallurgy process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2597431C2 (ru) * 2014-08-26 2016-09-10 Андрей Альбертович Половнев Пуля боеприпаса стрелкового оружия
PL227809B1 (pl) * 2015-12-09 2018-01-31 Dobromir Goryluk Monolityczny pocisk do broni strzeleckiej i sposób jego wytwarzania
DE102016009571B3 (de) * 2016-08-05 2018-02-08 Ruag Ammotec Gmbh Metallisches Vollgeschoss, Werkzeug-Anordnung und Verfahren zum Herstellen von metallischen Vollgeschossen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1447478A (en) * 1921-07-05 1923-03-06 Emil J Koshollek Bullet
US4044685A (en) * 1971-06-18 1977-08-30 Hirtenberger Patronen-, Zundhutchen- Und Metallwarenfabrik Aktiengesellschaft Jacketless hunting bullet with roll-back cutting flags
DE19930475A1 (de) * 1999-07-01 2001-01-04 Dynamit Nobel Ag Teilzerlegungsgeschoß
DE20320679U1 (de) * 2003-10-07 2004-12-09 Strauß, Rupert Allzweckgeschoss
US7360491B2 (en) * 2004-04-12 2008-04-22 Sanborn Craig M Firearm projectile apparatus, method, and product by process
DE202004015192U1 (de) * 2004-09-30 2005-01-05 Mayerl, Michael W. Geschoss für Handfeuerwaffen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224715B4 (de) 2014-10-29 2019-07-11 Metallwerk Elisenhütte GmbH Unterschallpatrone mit einem Geschoss sowie Geschoss für eine solche
US11313657B1 (en) * 2016-11-14 2022-04-26 Erik Agazim Multi-piece projectile with an insert formed via a powder metallurgy process
US11598617B2 (en) 2016-11-14 2023-03-07 Erik Agazim Multi-piece projectile with an insert formed via a powder metallurgy process

Also Published As

Publication number Publication date
EP2719993A3 (fr) 2015-07-29
DE102012003682A1 (de) 2014-02-13

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