EP0918208A1 - Expansionsgeschoss - Google Patents

Expansionsgeschoss Download PDF

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Publication number
EP0918208A1
EP0918208A1 EP98120294A EP98120294A EP0918208A1 EP 0918208 A1 EP0918208 A1 EP 0918208A1 EP 98120294 A EP98120294 A EP 98120294A EP 98120294 A EP98120294 A EP 98120294A EP 0918208 A1 EP0918208 A1 EP 0918208A1
Authority
EP
European Patent Office
Prior art keywords
ball
insert
groove
bullet
axial hole
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Withdrawn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
EP98120294A
Other languages
English (en)
French (fr)
Inventor
Pierre Mongin
Raymond Drouet
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP0918208A1 publication Critical patent/EP0918208A1/de
Withdrawn legal-status Critical Current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

Definitions

  • the technical field of the invention is that of bullets expansive, especially for handguns.
  • the blind hole opens at a level before the ball and it is closed by a ball-shaped insert or well with a conical part.
  • the insert Upon impact on a target, the insert is pushed back to inside the blind hole and it causes expansion in "mushroom" of the front part of the ball.
  • Expansion of the ball causes it to brake on impact on a target. When shooting a living being it results a shock effect which provides a significant stopping capacity. Expansive bullets are particularly useful for big game hunting or for law enforcement.
  • expansion capacity (or the maximum diameter of the bullet after impact) is dependent on the length of the ball, the path of the insert in the blind hole as well as mechanical characteristics of the body material of ball.
  • the ball according to the invention has capacities reproducible expansion and also has power significant expansion for a relatively long bale length scaled down.
  • ball expansion capabilities according to the invention are less dependent on the features bale body material.
  • the subject of the invention is therefore an expansive ball comprising a bullet body having a blind axial hole opening at a front part of the ball and closed by an insert, ball characterized in that it comprises at minus an annular peripheral groove arranged on the external surface of the bullet body, axially arranged groove at a tubular front part of the bullet body and having sufficient depth to facilitate the expansion of the ball on impact on a target.
  • the depth of the groove will be chosen to be substantially equal to half the thickness of the bullet body.
  • the throat can be delimited at the level from its rear edge by a chamfer.
  • the back of the throat may be toric.
  • the throat annular may be arranged axially substantially in look at the bottom of the axial hole.
  • the insert may include a conical rear part cooperating with a conical profile produced at a front part of the axial hole.
  • the insert will advantageously be made of an alloy aluminum and the bullet body made of copper or an alloy of copper.
  • an expanding ball 1 comprises a bullet body 2, made in copper or copper alloy (e.g. Cu Zn 25 or Cu Zn 35), which has a blind axial hole 3. Hole 3 is closed at a part before the bullet by a insert 4.
  • copper or copper alloy e.g. Cu Zn 25 or Cu Zn 35
  • the insert 4 is made of aluminum alloy (by example in A-U4G).
  • the insert 4 has a front part 4a ogive profile and a frustoconical rear part 4b which is applied to a conical surface 5 made at level of a front part of the axial hole 3.
  • the joining of the insert and the body is obtained by conical fitting.
  • the bullet body 2 Due to the presence of the axial hole 3, the bullet body 2 therefore has a massive rear part 2a and a part tubular front 2b.
  • the ball according to the invention comprises a annular peripheral groove 6 with toric bottom produced by machining on the external surface of the bullet body 2. This groove is arranged at the level of the tubular front part 2b, and it has a depth such that it remains at the bottom of groove a thickness E for the tubular part of the body of ball which is about half the thickness of this part before machining the groove.
  • the groove is arranged axially substantially opposite the bottom 7 of the axial hole, the distance d which separates the plane passing through the bottom of the groove and the bottom 7 of the hole is about 1 mm.
  • the groove 6 is delimited at its rear edge by a chamfer 8 which promotes the expansion of the ball during impact on a target by preventing interference premature between the front edges 6a and rear 6b of the throat.
  • Figure 2 shows the projectile according to the invention after impact on a target. Insert 4 has moved axially to inside the axial hole 3, which initiated the expansion of the tubular part 2b of the bullet body.
  • the groove 6 constitutes a zone of least resistance to deformation.
  • the toric bottom of the throat provides deformation progressive which limits the risks of rupture of the body tubular in several fragments.
  • the diameter of the expansion can be relatively important even for a short projectile.
  • the maximum diameter obtained is directly related to the length of the tubular part between the front of the ball and throat 6. The throat therefore favors the widening of the part tubular 2b even for a reduced path length for insert 4.
  • the shape of the bottom of the axial hole 3 is shown here. rough drilling with a conical bottom of hole, we may well obviously give the hole a flat bottom (obtained by milling) especially when it is necessary to increase the mass of the ball for a given throat position.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
EP98120294A 1997-11-20 1998-10-27 Expansionsgeschoss Withdrawn EP0918208A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9714550A FR2771167B1 (fr) 1997-11-20 1997-11-20 Balle expansive
FR9714550 1997-11-20

Publications (1)

Publication Number Publication Date
EP0918208A1 true EP0918208A1 (de) 1999-05-26

Family

ID=9513574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98120294A Withdrawn EP0918208A1 (de) 1997-11-20 1998-10-27 Expansionsgeschoss

Country Status (2)

Country Link
EP (1) EP0918208A1 (de)
FR (1) FR2771167B1 (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795170A1 (fr) * 1999-06-18 2000-12-22 Jean Claude Sauvestre Balle a fleche interne portee
DE19930475A1 (de) * 1999-07-01 2001-01-04 Dynamit Nobel Ag Teilzerlegungsgeschoß
WO2001018483A1 (de) * 1999-09-08 2001-03-15 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Bleireduziertes oder bleifreies jagdbüchsengeschoss mit verbesserter haltekraft des kerns im mantel
WO2001020244A1 (de) * 1999-09-10 2001-03-22 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Deformationsgeschoss mit penetrator im geschossbug
EP1156297A1 (de) * 2000-05-15 2001-11-21 SM Schweizerische Munitionsunternehmung AG Kleinkaliber-Deformationsgeschoss und Verfahren zu dessen Herstellung
WO2001002791A3 (de) * 1999-07-01 2002-10-31 Dynamit Nobel Ag Deformationsgeschoss
EP1099866A3 (de) * 1999-11-10 2003-04-02 Nagayama Electronic Industry Co., Ltd. Selbstsicherndes Befestigungselement
DE10257590A1 (de) * 2002-12-09 2004-07-08 Wilhelm Brenneke Gmbh & Co. Kg Büchsengeschoss für Jagdzwecke
ES2304898A1 (es) * 2008-03-03 2008-10-16 Industrias El Gamo, S.A. Procedimiento para la fabricacion de un balin para carabina o pistola deportiva y balin para carabina o pistola deportiva obtenido.
EP2133655A2 (de) * 2008-06-11 2009-12-16 Norma Precision AB Projektil für Feuerwaffen
US8752484B2 (en) 2011-07-26 2014-06-17 Ra Brands, L.L.C. Three component bullet with core retention feature and method of manufacturing the bullet
WO2014116950A1 (en) * 2013-01-24 2014-07-31 Ra Brands, L.L.C. Multi-component bullet with core retention feature and method of manufacturing the bullet
WO2014186007A1 (en) * 2013-02-15 2014-11-20 Ra Brands, L.L.C. Reduced friction expanding bullet with improved core retention feature and method of manufacturing the bullet
CZ305087B6 (cs) * 2010-10-27 2015-04-29 Sellier & Bellot A. S. Bezplášťová střela s řízenou deformací
USD733252S1 (en) 2011-07-26 2015-06-30 Ra Brands, L.L.C. Firearm bullet and portion of firearm cartridge
USD733834S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD733836S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD733837S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD733835S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD734419S1 (en) 2011-07-26 2015-07-14 Ra Brands, L.L.C. Firearm bullet
USD735289S1 (en) 2011-07-26 2015-07-28 R.A. Brands, L.L.C. Firearm bullet
US9534876B2 (en) 2013-05-28 2017-01-03 Ra Brands, L.L.C. Projectile and mold to cast projectile
WO2020249788A1 (de) * 2019-06-13 2020-12-17 Ruag Ammotec Gmbh Projektil, insbesondere deformations- und/oder teilzerlegungsgeschoss, und verfahren zum herstellen eines projektils
EP4047302A1 (de) * 2021-02-19 2022-08-24 Antonio Maria Flores Ramírez Monolithisch expandierendes geschoss

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR373597A (fr) * 1907-01-15 1907-05-18 Gilbert Hamilton Hoxie Projectile
US1556160A (en) * 1924-06-20 1925-10-06 Western Cartridge Co Game bullet
FR2317623A1 (fr) * 1975-07-05 1977-02-04 Dynamit Nobel Ag Projectile perfectionne, en particulier pour des armes de poing et des pistolets mitrailleurs
DE2843167A1 (de) 1978-10-04 1980-04-17 Schirnecker Hans Ludwig Geschoss, insbesondere jagdgeschoss
US4776279A (en) * 1987-09-17 1988-10-11 Pejsa Arthur J Expanding ballistic projectile
DE3822775A1 (de) * 1988-06-06 1990-02-08 Schirnecker Hans Ludwig Vielfachgeschoss

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR373597A (fr) * 1907-01-15 1907-05-18 Gilbert Hamilton Hoxie Projectile
US1556160A (en) * 1924-06-20 1925-10-06 Western Cartridge Co Game bullet
FR2317623A1 (fr) * 1975-07-05 1977-02-04 Dynamit Nobel Ag Projectile perfectionne, en particulier pour des armes de poing et des pistolets mitrailleurs
DE2843167A1 (de) 1978-10-04 1980-04-17 Schirnecker Hans Ludwig Geschoss, insbesondere jagdgeschoss
US4776279A (en) * 1987-09-17 1988-10-11 Pejsa Arthur J Expanding ballistic projectile
DE3822775A1 (de) * 1988-06-06 1990-02-08 Schirnecker Hans Ludwig Vielfachgeschoss

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302555B6 (cs) * 1999-06-18 2011-07-13 Munice pro zbrane
WO2000079211A1 (fr) * 1999-06-18 2000-12-28 Sauvestre Jean Claude Balle a fleche interne portee
FR2795170A1 (fr) * 1999-06-18 2000-12-22 Jean Claude Sauvestre Balle a fleche interne portee
US6845717B1 (en) 1999-06-18 2005-01-25 Jean-Claude Sauvestre Bullet with an internally carried sub-projectile
DE19930475A1 (de) * 1999-07-01 2001-01-04 Dynamit Nobel Ag Teilzerlegungsgeschoß
WO2001002792A3 (de) * 1999-07-01 2002-10-03 Dynamit Nobel Ag Teilzerlegungsgeschoss
WO2001002791A3 (de) * 1999-07-01 2002-10-31 Dynamit Nobel Ag Deformationsgeschoss
WO2001018483A1 (de) * 1999-09-08 2001-03-15 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Bleireduziertes oder bleifreies jagdbüchsengeschoss mit verbesserter haltekraft des kerns im mantel
WO2001020244A1 (de) * 1999-09-10 2001-03-22 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Deformationsgeschoss mit penetrator im geschossbug
EP1099866A3 (de) * 1999-11-10 2003-04-02 Nagayama Electronic Industry Co., Ltd. Selbstsicherndes Befestigungselement
EP1156297A1 (de) * 2000-05-15 2001-11-21 SM Schweizerische Munitionsunternehmung AG Kleinkaliber-Deformationsgeschoss und Verfahren zu dessen Herstellung
WO2001088460A1 (de) * 2000-05-15 2001-11-22 Ruag Munition Kleinkaliber-deformationsgeschoss und verfahren zu dessen herstellung
DE10257590A1 (de) * 2002-12-09 2004-07-08 Wilhelm Brenneke Gmbh & Co. Kg Büchsengeschoss für Jagdzwecke
US7543535B2 (en) 2002-12-09 2009-06-09 Wilhelm Brenneke Gmbh & Co. Kg Rifle bullet for hunting purposes
DE10257590B4 (de) * 2002-12-09 2005-03-24 Wilhelm Brenneke Gmbh & Co. Kg Büchsengeschoss für Jagdzwecke
ES2304898A1 (es) * 2008-03-03 2008-10-16 Industrias El Gamo, S.A. Procedimiento para la fabricacion de un balin para carabina o pistola deportiva y balin para carabina o pistola deportiva obtenido.
US7975590B2 (en) 2008-03-03 2011-07-12 Gamo Outdoor, Sl Procedure for manufacturing a pellet for sporting rifle or sporting gun and pellet for sporting rifle or sporting gun thus obtained
US8037796B2 (en) 2008-03-03 2011-10-18 Francisco Casas Salva Procedure for manufacturing a pellet for sporting rifle or sporting gun and pellet for sporting rifle or sporting gun thus obtained
EP2133655A2 (de) * 2008-06-11 2009-12-16 Norma Precision AB Projektil für Feuerwaffen
EP2133655A3 (de) * 2008-06-11 2012-05-30 Norma Precision AB Projektil für Feuerwaffen
US8511233B2 (en) 2008-06-11 2013-08-20 Norma Precision Ab Projectile for fire arms
CZ305087B6 (cs) * 2010-10-27 2015-04-29 Sellier & Bellot A. S. Bezplášťová střela s řízenou deformací
US8950333B2 (en) 2011-07-26 2015-02-10 Ra Brands, L.L.C. Multi-component bullet with core retention feature and method of manufacturing the bullet
US9366512B2 (en) 2011-07-26 2016-06-14 Ra Brands, L.L.C. Multi-component bullet with core retention feature and method of manufacturing the bullet
USD802705S1 (en) 2011-07-26 2017-11-14 Ra Brands, L.L.C. Firearm bullet
US8752484B2 (en) 2011-07-26 2014-06-17 Ra Brands, L.L.C. Three component bullet with core retention feature and method of manufacturing the bullet
USD733252S1 (en) 2011-07-26 2015-06-30 Ra Brands, L.L.C. Firearm bullet and portion of firearm cartridge
USD733834S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD733836S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD733837S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD733835S1 (en) 2011-07-26 2015-07-07 Ra Brands, L.L.C. Firearm bullet
USD734419S1 (en) 2011-07-26 2015-07-14 Ra Brands, L.L.C. Firearm bullet
USD735289S1 (en) 2011-07-26 2015-07-28 R.A. Brands, L.L.C. Firearm bullet
USD800244S1 (en) 2011-07-26 2017-10-17 Ra Brands, L.L.C. Firearm bullet
US9207052B2 (en) 2011-07-26 2015-12-08 Ra Brands, L.L.C. Three component bullet with core retention feature and method of manufacturing the bullet
USD800245S1 (en) 2011-07-26 2017-10-17 Ra Brands, L.L.C. Firearm bullet
USD800246S1 (en) 2011-07-26 2017-10-17 Ra Brands, L.L.C. Firearm bullet
USD791264S1 (en) 2011-07-26 2017-07-04 Ra Brands, L.L.C. Firearm bullet and portions of a firearm cartridge
USD791266S1 (en) 2011-07-26 2017-07-04 R A Brands, L.L.C. Firearm bullet
USD791265S1 (en) 2011-07-26 2017-07-04 Ra Brands, L.L.C. Firearm bullet and portions of a firearm cartridge
WO2014116950A1 (en) * 2013-01-24 2014-07-31 Ra Brands, L.L.C. Multi-component bullet with core retention feature and method of manufacturing the bullet
WO2014186007A1 (en) * 2013-02-15 2014-11-20 Ra Brands, L.L.C. Reduced friction expanding bullet with improved core retention feature and method of manufacturing the bullet
US9188414B2 (en) 2013-02-15 2015-11-17 Ra Brands, L.L.C. Reduced friction expanding bullet with improved core retention feature and method of manufacturing the bullet
US9534876B2 (en) 2013-05-28 2017-01-03 Ra Brands, L.L.C. Projectile and mold to cast projectile
WO2020249788A1 (de) * 2019-06-13 2020-12-17 Ruag Ammotec Gmbh Projektil, insbesondere deformations- und/oder teilzerlegungsgeschoss, und verfahren zum herstellen eines projektils
DE102019116125A1 (de) * 2019-06-13 2020-12-17 Ruag Ammotec Gmbh Projektil, insbesondere Deformations- und/oder Teilzerlegungsgeschoss, und Verfahren zum Herstellen eines Projektils
CN114127505A (zh) * 2019-06-13 2022-03-01 卢阿格现代科技有限责任公司 特别是变形和/或部分碎裂子弹的射弹以及用于制造射弹的方法
EP4047302A1 (de) * 2021-02-19 2022-08-24 Antonio Maria Flores Ramírez Monolithisch expandierendes geschoss

Also Published As

Publication number Publication date
FR2771167B1 (fr) 1999-12-10
FR2771167A1 (fr) 1999-05-21

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