US1892158A - Short range bullet - Google Patents

Short range bullet Download PDF

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Publication number
US1892158A
US1892158A US540066A US54006631A US1892158A US 1892158 A US1892158 A US 1892158A US 540066 A US540066 A US 540066A US 54006631 A US54006631 A US 54006631A US 1892158 A US1892158 A US 1892158A
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Prior art keywords
bullet
short range
bearing
range bullet
thickness
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Expired - Lifetime
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US540066A
Inventor
Matthews John
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Individual
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Priority to US540066A priority Critical patent/US1892158A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles

Definitions

  • This invention relates to bullets and more particularly it has reference to a short-range, practice bullet.
  • the bullet forming the subject of the present invention is characterized by a hollow body having a closed base and an open nose.
  • Fig. l is a view in side elevation of the improved bullet and Fig. 2 is a longitudinal sectional view thereof.
  • the bullet consists of a hollow body 5 whose external dimensions are substantially identical with a service bullet, on Which it is patterned.
  • the tapered nose 6 is cut ofl to establish 4() an aperture 7 having a diameter equal to approximately one-third of the internal diameter of the body.
  • the wall defining the aperture is internally beveled as at 8 to provide a flared mouth and sharp rim 9 adapted to facilitate the flight of the bullet through the air.
  • the rear end of the body is closed by a base 10 of approximately twice the thickness of the wall of the body, and pressed inwardly so as at 10a to give greater strength.
  • the rear portion a-b of the body in rear of the cannelure 11 has a diameter slightly in excess of the remaining portion in order to provide a bearing for taking the rifling of the gun barrel.
  • the bearing is substantially one-half caliber in length and this is onehalf of the length of the bearing in the service cartridge.
  • the efiect is to reduce Wear of the gun barrel and also by reducing the resistance of the bullet in the barrel permit the employment of a smaller propellant charge.
  • the bullet is preferably formed of gilding metal and has a weight of approximately 35 grains for the .30 caliber size. As constructed its trajectory closely follows the trajectory of the service cartridge up to about 300 yards. Variations in the effective range may be controlled by varying the weight of the bullet and in the propellant charge. 7
  • the improved practice bullet is similar to the jacket of the service bullet and accordingly it may be formed in the same manner.
  • a bullet comprising a hollow body, a closed base for the body having a thiclmess substantially double the thickness of the 0 body, and a tapered nose cut off to form an aperture with a flared mouth and having a diameter substantially one-third the diameter of the body, and the rear portion of, the body being enlarged to form a bearing ap- 5 proximately one-half caliber in length.
  • a one piece bullet comprising a hollow body having a short bearing at its rear end and a fixed closed base of greater thickness than the body, a portion of said base indented to afiord strength to the bearing.
  • a practice bullet comprising a thin walled hollow body, a closed base for the body having a thickness substantially double the thickness of the walls of the body, an elongated tapered nose cut off to form an aperture and the rearmost portion of the body enlarged to form a bearing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Description

Dec. 27, 1932. J MATTHEWS 1,892,158
SHORT RANGE BULLET Filed May 26. 1931 IIHIII IIIIIIHW\ IN V EN TOR.
I duhn Matthews BY M /@M ATTORNEY Fatented Dec. 27, 1932 UitiTiEfi STATEfi JOHN MATTHEWS, OF PHILADELPHIA, PENNSYLVANIA SHORT RANGE BULL-ET Application filed May 26, 1931.
Serial No. 540,066.
(GRANTED UNDER THE AC1 OF MARCH 3, 1883, AS AMENDED APRIL 30, 1928; 370 O. G. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.
This invention relates to bullets and more particularly it has reference to a short-range, practice bullet.
The principal considerations governing the design of a practice bullet are accuracy of flight, a trajectory conforming throughout its short range to that of the service bullet, and cheapness of manufacture.
In meeting these requirements the bullet forming the subject of the present invention is characterized by a hollow body having a closed base and an open nose.
lVith the foregoing and other objects in view, the invention resides in the novel arrangement and combination of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made Within the scope of what is claimed without departing from the spirit of the invention.
A practical embodiment of the invention is illustrated in the accompanying drawing, in which,
Fig. l is a view in side elevation of the improved bullet and Fig. 2 is a longitudinal sectional view thereof.
Referring to the drawing by numerals of reference:
The bullet consists of a hollow body 5 whose external dimensions are substantially identical with a service bullet, on Which it is patterned.
The tapered nose 6 is cut ofl to establish 4() an aperture 7 having a diameter equal to approximately one-third of the internal diameter of the body. The wall defining the aperture is internally beveled as at 8 to provide a flared mouth and sharp rim 9 adapted to facilitate the flight of the bullet through the air.
The rear end of the body is closed by a base 10 of approximately twice the thickness of the wall of the body, and pressed inwardly so as at 10a to give greater strength.
The rear portion a-b of the body in rear of the cannelure 11 has a diameter slightly in excess of the remaining portion in order to provide a bearing for taking the rifling of the gun barrel. The bearing is substantially one-half caliber in length and this is onehalf of the length of the bearing in the service cartridge. The efiect is to reduce Wear of the gun barrel and also by reducing the resistance of the bullet in the barrel permit the employment of a smaller propellant charge.
The bullet is preferably formed of gilding metal and has a weight of approximately 35 grains for the .30 caliber size. As constructed its trajectory closely follows the trajectory of the service cartridge up to about 300 yards. Variations in the effective range may be controlled by varying the weight of the bullet and in the propellant charge. 7
Except for the closed base and the open nose, which two features are provided to afford retardation in flight, the improved practice bullet is similar to the jacket of the service bullet and accordingly it may be formed in the same manner.
I claim:
1. A bullet comprising a hollow body, a closed base for the body having a thiclmess substantially double the thickness of the 0 body, and a tapered nose cut off to form an aperture with a flared mouth and having a diameter substantially one-third the diameter of the body, and the rear portion of, the body being enlarged to form a bearing ap- 5 proximately one-half caliber in length.
2. A one piece bullet comprising a hollow body having a short bearing at its rear end and a fixed closed base of greater thickness than the body, a portion of said base indented to afiord strength to the bearing.
3. A practice bullet comprising a thin walled hollow body, a closed base for the body having a thickness substantially double the thickness of the walls of the body, an elongated tapered nose cut off to form an aperture and the rearmost portion of the body enlarged to form a bearing.
JOHN MATTHEWS.
US540066A 1931-05-26 1931-05-26 Short range bullet Expired - Lifetime US1892158A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678804A (en) * 1944-06-09 1954-05-18 Schlumberger Well Surv Corp Sample taking projectile
US2920374A (en) * 1953-10-28 1960-01-12 Lyon George Albert Method of making projectiles
US3800706A (en) * 1971-10-07 1974-04-02 Dynamit Nobel Ag Projectile for training ammunition
US20070144395A1 (en) * 2004-02-10 2007-06-28 International Cartridge Corporation Cannelured frangible projectile and method of canneluring a frangible projectile
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
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
US9534876B2 (en) 2013-05-28 2017-01-03 Ra Brands, L.L.C. Projectile and mold to cast projectile
USD791266S1 (en) 2011-07-26 2017-07-04 R A 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
USD791265S1 (en) 2011-07-26 2017-07-04 Ra Brands, L.L.C. Firearm bullet and portions of a firearm cartridge
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
USD800244S1 (en) 2011-07-26 2017-10-17 Ra Brands, L.L.C. Firearm bullet
USD802705S1 (en) 2011-07-26 2017-11-14 Ra Brands, L.L.C. Firearm bullet
WO2018024754A1 (en) * 2016-08-05 2018-02-08 Ruag Ammotec Gmbh Solid metal bullet, tool system and method for producing solid metal bullets

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678804A (en) * 1944-06-09 1954-05-18 Schlumberger Well Surv Corp Sample taking projectile
US2920374A (en) * 1953-10-28 1960-01-12 Lyon George Albert Method of making projectiles
US3800706A (en) * 1971-10-07 1974-04-02 Dynamit Nobel Ag Projectile for training ammunition
US20070144395A1 (en) * 2004-02-10 2007-06-28 International Cartridge Corporation Cannelured frangible projectile and method of canneluring a frangible projectile
US7322297B2 (en) * 2004-02-10 2008-01-29 International Cartridge Corporation Cannelured frangible projectile and method of canneluring a frangible projectile
USD791266S1 (en) 2011-07-26 2017-07-04 R A Brands, L.L.C. Firearm 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
USD791264S1 (en) 2011-07-26 2017-07-04 Ra Brands, L.L.C. Firearm bullet and portions of a firearm cartridge
USD791265S1 (en) 2011-07-26 2017-07-04 Ra Brands, L.L.C. Firearm bullet and portions of a firearm cartridge
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
USD800244S1 (en) 2011-07-26 2017-10-17 Ra Brands, L.L.C. Firearm bullet
USD802705S1 (en) 2011-07-26 2017-11-14 Ra Brands, L.L.C. Firearm 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
WO2018024754A1 (en) * 2016-08-05 2018-02-08 Ruag Ammotec Gmbh Solid metal bullet, tool system and method for producing solid metal bullets
US11428516B2 (en) 2016-08-05 2022-08-30 Ruag Ammotec Gmbh Metallic solid projectile, tool arrangement and method for producing metallic solid projectiles
US11953300B2 (en) 2016-08-05 2024-04-09 Ruag Ammotec Gmbh Metallic solid projectile, tool arrangement and method for producing metallic solid projectiles

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