US3580179A - Ammunition for target practice or other short-range purposes - Google Patents

Ammunition for target practice or other short-range purposes Download PDF

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Publication number
US3580179A
US3580179A US757898A US3580179DA US3580179A US 3580179 A US3580179 A US 3580179A US 757898 A US757898 A US 757898A US 3580179D A US3580179D A US 3580179DA US 3580179 A US3580179 A US 3580179A
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US
United States
Prior art keywords
projectile
tip
outer jacket
central
central core
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.)
Expired - Lifetime
Application number
US757898A
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English (en)
Inventor
Heinz Gawlick
Rudolf Stahlmann
Hans Umback
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 AG filed Critical Dynamit Nobel AG
Application granted granted Critical
Publication of US3580179A publication Critical patent/US3580179A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/34—Tubular projectiles

Definitions

  • Projectiles designed for practice or other limited-range purposes including a tip which will disintegrate and/or be jettisoned from the body of the projectile and laterally deflected from the path thereof shortly after exit from the barrel of the firearm, which tip is constructed with a longitudinal cross section deviating from rotational symmetry and/or an annular hollow space surrounding the central core thereof and extending rearward, which hollow space is defined by the outer shell of the tip, having a thickness such that it may be ruptured by the pressure of the propellant gases.
  • the present invention relates to axially perforated projectiles for practice or other limited range purposes, incorporating a tip which either disintegrates upon firing or is jettisoned from the projectile shortly after exit from the barrel of the firearm.
  • projectiles intended for practice purposes are designed and manufactured for limited range by employing materials of low density.
  • special precautions are required to ensure the automatic functioning of the firearm.
  • projectiles for training purposes which, by virtue of their limited flight range, are useful as well, as live ammunition against relatively close-range targets, has been directed in efforts to produce a tip, of a low-density material, which could be secured to the forward end of a projectile having a central axial bore, wherein the tip could be jettisoned from the projectile after firing.
  • projectiles have been produced incorporating a tip of this sort, in which the tip was designed so as to complement the fonn of the projectile body, in an attempt to produce a complete projectile body having the desired aerodynamic properties.
  • a composite projectile body including a projectile body having a central axial bore therethrough and a tip formed from low-density material, which, when employed for purposes of target practice, will produce more meaningful and reliable indications of accuracy.
  • the tip such that a longitudinal cross section thereof exhibits a deviation from rotational symmetry and/or providing the tip with an annular hollow space defined by the outer shell and the central core of the tip, which hollow space is open in the rearward direction toward the projectile body, wherein the outer wall of the hollow space has a predetermined thickness which ensures the rupture of the wall under the pressure of the propellant gases, preferably within the barrel of the firearm, and certainly, immediately upon exit from the barrel.
  • a projectile constructed in accordance with the present invention incorporates a tip which, after exit from the barrel of the firearm, is jettisoned from the projectile body and laterally deflected from the path thereof and/or which disintegrates into several portions which, due to their relatively lightweight, exhibit a very short flight period.
  • Such a construction therefore, prevents the jettisoned tip of the projectile from impinging on a practice target, thereby distorting the accuracy indication.
  • the tip is constructed with the rear end of the outer shell or jacket thereof extending over a projection formed at the front end of the projectile body. Additionally, the tip is connected with the projectile body by the extension of the central core of the tip into the central axial bore of the projectile body.
  • connection between the outer jacket of the tip and the projection on the body of the projectile is constructed in the form of a snap-lock connection, by providing a conically thickened section toward the rear end of the outer jacket of the tip, which section firmly engages with a correspondingly fashioned constriction provided at the projection on the projectile body.
  • the present invention further contemplates the provision of reinforcing radial ribs over at least part of the length of the hollow space to provide the necessary strength to withstand the mechanical stresses to which the ammunition is exposed during transport and introduction into the cartridge chamber of the firearm. While other forms of reinforcement could also be suitably employed, these must not, however, operate to afford such strength that the tip, having separated from the projectile body, might remain intact under the pressure of the propellant gases.
  • One particularly simple means for imparting asymmetry to the construction of the tip involves the provision of a perforation, bore or the like connecting the exterior surface of the outer jacket with the rear end of the tip.
  • the destruction of the central core of the tip is rendered more certain by providing a recess, open in the rearward direction, extending along a relatively large part of the length of the core.
  • a synthetic resin material is suitable for the construction of the tip of the projectile in accordance with the present inven tion.
  • the tip which is illustrated of approximately oval shape, incorporates a central core 1, which extends into the central bore 3 of the projectile body 2.
  • the core 1 is retained within the bore 3 appropriately by means of a slight clamping or frictional seat pressure.
  • the outer jacket 5, which, together with central core 1, defines the hollow space 4 includes a conically thickened rearward end 6 which engages over the plug-shaped projection 7 at the forward end of the projectile body 2, projection 7 being conically constricted to conformingly engage with end 6.
  • the engagement between end 6 and projection 7 retains wall in the manner of a snap-lock connection.
  • a bore 8 is formed in the tip extending from the outer surface thereof toward the rear end, thus providing the passage of propellant gases therethrough.
  • Ribs 9 are disposed between outer jacket 5 and central core 1 for purposes of reinforcement.
  • a recess may be provided within the central core, open at the rearward end thereof, extending over at least a portion of the length of the central core, as indicated in dotdash lines in FIG. 1.
  • a portion of the propellant gases flows into the central bore 3 of the projectile body 2 and first effects the separation of the tip from the projectile body.
  • the tip is then blown up and torn apart by the propellant gases flowing through the bore 3 and into the hollow space 4, at least insofar as this is intended, and depending upon the dimensioning of the various parts.
  • the broken segments of the tip being individually light in weight, fall to the ground relatively soon after exiting from the barrel of the firearm. Additionally, in some cases, the broken segments are laterally deflected out of the flight path of the projectile body 2.
  • the bore 8 effects the lateral deflection of the tip out of the flight path of the projectile projectile body 2 after the tip has exited from the barrel of the firearm.
  • a projectile for practice or other short-range purposes comprising:
  • tip means adapted for locking engagement with said projectile body means at the forward end thereof as viewed in the direction of firing, said tip means being rotationally asymmetric about the central longitudinal axis thereof.
  • said tip means includes central core means and outer jacket means secured thereto in the region of the forward end thereof, said outer jacket means and said central core means defining therebetween an annularly shaped hollow space open in the rearward direction of said projectile, said outer jacket means having a predetermined thickness calculated to rupture under the pressure of the propellant gases upon firing of the projec tile.
  • central core means includes an axial bore therein, said axial bore extending inwardly from said rearward end of said central core means.
  • a projectile for practice or other short-range purposes, including projectile body means having a central bore extending therethrough, the improvement comprising detachable and readily destructible tip means including central core means and outer jacket means, integral with said central core means at the forward end thereof and extending radially outwardly therefrom and rearwardly, thus defining an annularly shaped hollow space between said central core means and said outer jacket means, said hollow space being open in the rearward direction, the rear end of said outer jacket means being provided with means for securing said tip means to said projectile body means prior to firing of the projectile, said outer jacket means having a predetermined wall thickness calculated to ensure rupture of the wall under the pressure of the propellant gases upon firing of the projectile.
  • outer jacket means is perforated by at least one bore extending therethrough, thus permitting passage of gases through said outer jacket means, said bore extending in a generally axial direction and being spaced laterally from the central axis of said projectile.
  • central core means extends into the central axial bore of said projectile body means when said tip means is attached thereto, said central core means being dimensioned such that it engages within said central axial bore with slight clamping force, said central core means having a centrally disposed axial bore extending inwardly from the rear end thereof over a portion of the length of said core means.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US757898A 1967-09-06 1968-09-06 Ammunition for target practice or other short-range purposes Expired - Lifetime US3580179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0054040 1967-09-06

Publications (1)

Publication Number Publication Date
US3580179A true US3580179A (en) 1971-05-25

Family

ID=7055440

Family Applications (1)

Application Number Title Priority Date Filing Date
US757898A Expired - Lifetime US3580179A (en) 1967-09-06 1968-09-06 Ammunition for target practice or other short-range purposes

Country Status (11)

Country Link
US (1) US3580179A (enrdf_load_stackoverflow)
BE (1) BE720456A (enrdf_load_stackoverflow)
CH (1) CH469241A (enrdf_load_stackoverflow)
DE (2) DE1578123C3 (enrdf_load_stackoverflow)
FR (1) FR1579303A (enrdf_load_stackoverflow)
GB (1) GB1228204A (enrdf_load_stackoverflow)
LU (1) LU56785A1 (enrdf_load_stackoverflow)
NL (1) NL167240C (enrdf_load_stackoverflow)
NO (1) NO121538B (enrdf_load_stackoverflow)
SE (1) SE332766B (enrdf_load_stackoverflow)
TR (1) TR18201A (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726495A (en) * 1970-01-20 1973-04-10 Dynamit Nobel Ag Projectile
US3747533A (en) * 1970-12-08 1973-07-24 Oerlikon Buehrle Ag Short trajectory missile
US4175492A (en) * 1976-10-30 1979-11-27 Dynamit Nobel, AG Projectile, particularly for hand firearms and long firearms
US4215632A (en) * 1977-05-11 1980-08-05 Eurometaal N.V. Exercise projectile, more especially of the discarding sabot type
US6540176B2 (en) * 2001-01-08 2003-04-01 The United States Of America As Represented By The Secretary Of The Army Fin disengagement device for limiting projectile range
US20060096491A1 (en) * 2002-10-17 2006-05-11 Christophe Fichot Firearm ammunition projectile
US20060278738A1 (en) * 2005-06-09 2006-12-14 Bowles Fluidics Corporation Fluid spray device that utilizes a check valve
USD707785S1 (en) 2012-09-28 2014-06-24 Lws Ammunition Llc Pistol cartridge
US8881654B2 (en) 2011-10-14 2014-11-11 Lws Ammunition Llc Bullets with lateral damage stopping power
US9709368B2 (en) 2014-04-30 2017-07-18 G9 Holdings, Llc Projectile with enhanced ballistics
US11156442B1 (en) 2018-10-11 2021-10-26 U.S. Government As Represented By The Secretary Of The Army Dynamic instability reduced range round
US20230194222A1 (en) * 2020-05-22 2023-06-22 Bae Systems Bofors Ab Short-range projectile
USD1055200S1 (en) 2014-04-30 2024-12-24 G9 Holdings, Llc Projectile

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630830A1 (de) * 1976-07-09 1978-01-19 Dynamit Nobel Ag Treibspiegelgeschoss
DE2756420C2 (de) * 1977-12-17 1985-02-07 Rheinmetall GmbH, 4000 Düsseldorf Geschoß mit selbsttätiger Zerlegerwirkung
DE2757665C2 (de) * 1977-12-23 1984-12-20 Rheinmetall GmbH, 4000 Düsseldorf Drallstabilisiertes Ringgeschoß
CH627550A5 (de) 1978-05-30 1982-01-15 Oerlikon Buehrle Ag Drallstabilisiertes treibspiegelgeschoss zur ueberwindung eines heterogenen widerstandes.
SE427694B (sv) * 1979-04-02 1983-04-25 Bofors Ab Speciellt for utbilndningsendamal anvendbar fullkalibrig ovningsgranat
DE8516610U1 (de) * 1985-06-07 1985-10-31 Rheinmetall GmbH, 4000 Düsseldorf Übungspatrone
GB2192696B (en) * 1986-07-15 1989-12-13 Royal Ordnance Plc Mortar projectiles

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US391367A (en) * 1888-10-16 Haeeis p
US603466A (en) * 1898-05-03 Projectile
US906771A (en) * 1908-03-10 1908-12-15 Frank E Clotz Projectile.
US2246429A (en) * 1936-03-30 1941-06-17 Sageb Sa Projectile
US2356227A (en) * 1940-08-27 1944-08-22 Diehl Elias Stanley Projectile
US2386054A (en) * 1942-04-16 1945-10-02 William N Mcgee Projectile
US3282214A (en) * 1964-12-14 1966-11-01 Madison H Briscoe Projectile
US3357357A (en) * 1964-08-04 1967-12-12 Inst Nac De Ind Ct De Estudios Rifle bullet

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US391367A (en) * 1888-10-16 Haeeis p
US603466A (en) * 1898-05-03 Projectile
US906771A (en) * 1908-03-10 1908-12-15 Frank E Clotz Projectile.
US2246429A (en) * 1936-03-30 1941-06-17 Sageb Sa Projectile
US2356227A (en) * 1940-08-27 1944-08-22 Diehl Elias Stanley Projectile
US2386054A (en) * 1942-04-16 1945-10-02 William N Mcgee Projectile
US3357357A (en) * 1964-08-04 1967-12-12 Inst Nac De Ind Ct De Estudios Rifle bullet
US3282214A (en) * 1964-12-14 1966-11-01 Madison H Briscoe Projectile

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726495A (en) * 1970-01-20 1973-04-10 Dynamit Nobel Ag Projectile
US3747533A (en) * 1970-12-08 1973-07-24 Oerlikon Buehrle Ag Short trajectory missile
US4175492A (en) * 1976-10-30 1979-11-27 Dynamit Nobel, AG Projectile, particularly for hand firearms and long firearms
US4215632A (en) * 1977-05-11 1980-08-05 Eurometaal N.V. Exercise projectile, more especially of the discarding sabot type
US6540176B2 (en) * 2001-01-08 2003-04-01 The United States Of America As Represented By The Secretary Of The Army Fin disengagement device for limiting projectile range
US20060096491A1 (en) * 2002-10-17 2006-05-11 Christophe Fichot Firearm ammunition projectile
US7484459B2 (en) * 2002-10-17 2009-02-03 Etat Francais Represente par le Ministere de l 'Interieur de la Securite Interieure et des Libertes Locales Represente par la Direction Generale de la Police Nationale Firearm ammunition projectile
US20060278738A1 (en) * 2005-06-09 2006-12-14 Bowles Fluidics Corporation Fluid spray device that utilizes a check valve
US9200878B2 (en) 2011-10-14 2015-12-01 Lws Ammunition Llc Bullets with lateral damage stopping power
US8881654B2 (en) 2011-10-14 2014-11-11 Lws Ammunition Llc Bullets with lateral damage stopping power
USD797880S1 (en) 2012-09-28 2017-09-19 Lws Ammunition Llc Pistol cartridge
USD707785S1 (en) 2012-09-28 2014-06-24 Lws Ammunition Llc Pistol cartridge
USD751166S1 (en) 2012-09-28 2016-03-08 Lws Ammunition Llc Pistol cartridge
USD797881S1 (en) 2012-09-28 2017-09-19 Lws Ammunition Llc Pistol cartridge
US11181351B2 (en) 2014-04-30 2021-11-23 G9 Holdings, Llc Projectile with enhanced ballistics
USD980941S1 (en) 2014-04-30 2023-03-14 G9 Holdings, Llc Projectile
USD868199S1 (en) 2014-04-30 2019-11-26 G9 Holdings, Llc Projectile
US10502536B2 (en) 2014-04-30 2019-12-10 G9 Holdings, Llc Projectile with enhanced ballistics
US10578410B2 (en) 2014-04-30 2020-03-03 G9 Holdings, Llc Projectile with enhanced ballistics
US11041703B2 (en) 2014-04-30 2021-06-22 G9 Holdings, Llc Projectile with enhanced ballistics
USD1055200S1 (en) 2014-04-30 2024-12-24 G9 Holdings, Llc Projectile
US9709368B2 (en) 2014-04-30 2017-07-18 G9 Holdings, Llc Projectile with enhanced ballistics
USD978277S1 (en) 2014-04-30 2023-02-14 G9 Holdings, Llc Projectile
USD863492S1 (en) 2014-04-30 2019-10-15 G9 Holdings, Llc Projectile
USD1043896S1 (en) 2014-04-30 2024-09-24 G9 Holdings, Llc Projectile
US11808550B2 (en) 2014-04-30 2023-11-07 G9 Holdings, Llc Projectile with enhanced ballistics
US12050093B2 (en) 2014-04-30 2024-07-30 G9 Holdings, Llc Projectile with enhanced ballistics
USD1043897S1 (en) 2014-04-30 2024-09-24 G9 Holdings, Llc Projectile
USD1043894S1 (en) 2014-04-30 2024-09-24 G9 Holdings, Llc Projectile
US11156442B1 (en) 2018-10-11 2021-10-26 U.S. Government As Represented By The Secretary Of The Army Dynamic instability reduced range round
US20230194222A1 (en) * 2020-05-22 2023-06-22 Bae Systems Bofors Ab Short-range projectile

Also Published As

Publication number Publication date
CH469241A (de) 1969-02-28
DE1578123C3 (de) 1975-07-17
GB1228204A (enrdf_load_stackoverflow) 1971-04-15
DE1578123A1 (de) 1971-04-08
TR18201A (tr) 1976-11-22
NL167240B (nl) 1981-06-16
NO121538B (enrdf_load_stackoverflow) 1971-03-08
SE332766B (enrdf_load_stackoverflow) 1971-02-15
NL6811788A (enrdf_load_stackoverflow) 1969-03-10
LU56785A1 (enrdf_load_stackoverflow) 1968-11-22
FR1579303A (enrdf_load_stackoverflow) 1969-08-22
NL167240C (nl) 1981-11-16
BE720456A (enrdf_load_stackoverflow) 1969-02-17
DE1578123B2 (de) 1974-12-05

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