EP3658848A1 - Small-arms ammunition with non-brass casing and non-lead projectile - Google Patents
Small-arms ammunition with non-brass casing and non-lead projectileInfo
- Publication number
- EP3658848A1 EP3658848A1 EP18752984.7A EP18752984A EP3658848A1 EP 3658848 A1 EP3658848 A1 EP 3658848A1 EP 18752984 A EP18752984 A EP 18752984A EP 3658848 A1 EP3658848 A1 EP 3658848A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- projectile
- small arms
- casing
- ammunition round
- arms ammunition
- 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- Withdrawn
Links
Classifications
-
- 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
- F42B5/26—Cartridge cases
- F42B5/28—Cartridge cases of metal, i.e. the cartridge-case tube is of metal
- F42B5/285—Cartridge cases of metal, i.e. the cartridge-case tube is of metal formed by assembling several elements
-
- 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
- F42B5/26—Cartridge cases
- F42B5/28—Cartridge cases of metal, i.e. the cartridge-case tube is of metal
-
- 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
- F42B10/02—Stabilising arrangements
- F42B10/26—Stabilising arrangements using spin
-
- 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
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
- F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
-
- 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
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
- F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
- F42B12/745—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers
-
- 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
- F42B8/14—Projectiles or missiles disintegrating in flight or upon impact
Definitions
- Typical ammunition for rifles and handguns consists of a generally tubular brass shell casing bearing a lead bullet, with the tubular casing housing a percussion- responsive cap (primer) and a propellant charge disposed within the casing between the primer and the bullet.
- the desire for simplicity in manufacture, long shelf life, dimensional stability, and other factors, has led to widespread adoption of brass as the casing material and lead as the projectile.
- the Palcher application describes that the preferred casing material is a polymer, being a thermoplastic rather than a thermosetting polymer, which has a high strength and is heat and flame resistant.
- the Palcher application describes that preferred casing materials are polysulfone, polyimide-amide and polyethylene sulfone.
- U.S. Patent Number 9,939,236 of Drobockyi et al discloses an alternative casing for use in a cartridge for a firearm, in which the casing comprises a sleeve and an attached base made of stainless steel.
- the sleeve is formed with a mouth for holding a bullet and an opposing bulkhead from which extends a nipple.
- the end of the nipple is flared radially outwardly within a passageway of the base, to form a special configuration lip and first seal.
- the nipple is shaped to make a second seal when press fitted into the passageway.
- a bulkhead is formed with a circumferential wave or ridge.
- the '236 Patent describes that the sleeve preferably is made from austenitic stainless steel that is worked to have differential hardness and magnetic properties along the sleeve length, with the nipple being of lesser hardness.
- the present invention comprises a small arms ammunition round having a non-brass casing and a non-lead projectile housed within the casing.
- the non-brass casing includes stainless steel and the non-lead projectile includes a matrix of at least one epoxy, at least one non-epoxy polymer, and copper.
- the casing comprises a stainless steel shell housing and an aluminum primer housing which are press-fit together.
- the projectile has a tapered nose with spiral flutes.
- the present invention comprises a small arms ammunition round having a non-brass casing and a non-lead projectile housed within the casing.
- the non-brass casing comprises a stainless steel casing.
- the non-brass casing also comprises an aluminum casing.
- the stainless steel casing is for housing the projectile and the aluminum casing is for housing a primer, with the stainless steel casing and the aluminum casing being press- fit together.
- the projectile has a tapered nose with spiral flutes.
- a novel small arms round including an all stainless steel/aluminum cased, polycarbonate/copper tipped, high-performance cartridge.
- the resulting round is lightweight and exhibits high performance.
- the novel small arms rounds/cartridges reduce weight compared to heavy traditional ammo by as much as 30-60%.
- the projectiles exhibit a velocity increase of about 15-30% over conventional rounds, and reduce recoil by 10-25%.
- the novel rounds eliminate lead and copper fouling in the gun barrels.
- Figure 1 is a schematic plan view of a small arms round including a non- brass shell casing and a non-lead projectile according to an example form of the present invention.
- Figure 2 is a schematic plan view of a non-lead projectile portion of the small arms round of Figure 1 .
- Figure 3 is a schematic end view of a non-lead projectile portion of the small arms round of Figure 1 .
- Figure 4 is a schematic perspective view of a small arms round including a non-lead projectile portion in an alternate example form of the present invention.
- Figure 1 shows an example embodiment of a small arms round according to one form of the present invention.
- the example small arms ammunition round 100 shown in Figure 1 includes a non-brass casing 1 10 and a non-lead projectile 150 housed within the casing.
- the non-brass casing 1 10 includes stainless steel and the non-lead projectile 150 includes a matrix of at least one epoxy, at least one non-epoxy polymer, and copper.
- the non-epoxy polymer can include nylon (either entirely or as a component thereof).
- the casing 1 10 comprises a stainless steel shell housing 1 1 1 and an aluminum primer housing 1 12 which are press- fit together adjacent joint 1 15.
- the projectile has a tapered nose with spiral flutes.
- the projectile 150 has an outer geometry comprising several notches 152-154 extending in a longitudinal direction (i.e., axial direction). Notches 152-154 are present in a number equal to or greater than two and preferably are disposed in such a manner as to avoid an imbalance of the rotation of projectile 150 about its dissecting axis, which could cause a deviation of a flight path 159. In some embodiments, the number of notches is three. However, the number of notches can be four or another quantity.
- exemplary projectile 150 has a notch configuration that increases an outer surface area of the end portion 155 of projectile 150.
- Each notch 152-154 can comprise a first notch surface portion in combination with a second notch surface portion (which can be a spherical surface).
- the spherical surface portion makes the notched projectile structurally stronger so that when projectile 150 hits a soft element, it avoids the formation and propagation of cracks which would tend to cause it to decompose into small fragments.
- projectile 150 can be manufactured by injection molding a polymeric material (e.g., a polyamide) filled with metal particles.
- projectile 150 can be manufactured by sintering and/or machining with or without electrochemical coating.
- projectile 150 is manufactured with a base material that will not deform easily upon impact and decompose into fragments upon impact, such as a violent impact against a hard surface, to ensure that it remains a frangible projectile 150 by definition.
- projectile 150 travels after a shot, making a trajectory 159 with a rotational movement 160 along axis of projectile 150 so as to ensure stability during flight.
- energy of projectile 150 makes projectile 150 decompose into fragments, which are thrown in various directions, such as directions 161 , 162, 163, producing only a small damaged area on a hard surface. The production of such fragments prevents projectile 150 from ricocheting uncontrollably and reaching an unintended target.
- the novel projectile has a degree of "engineered frangibility" which by design means that it will penetrate most "hard surfaces” such as a thin metal car door, an automotive windshield, wood, a tree trunk of modest size, building walls of drywall and wood studs, even mild steel plate (although the windshield and mild steel plate will cause deformation of the nose of the projectile to some degree).
- hard surfaces such as a thin metal car door, an automotive windshield, wood, a tree trunk of modest size, building walls of drywall and wood studs, even mild steel plate (although the windshield and mild steel plate will cause deformation of the nose of the projectile to some degree).
- the present invention comprises a small arms ammunition round having a non-brass casing and a non-lead projectile housed within the casing.
- the non-brass casing comprises at least a stainless steel casing portion.
- the non-brass casing also comprises an aluminum casing portion.
- the stainless steel casing is provided for housing the projectile and the aluminum casing is provided for housing a primer, with the stainless steel casing portion and the aluminum casing portion being press-fit together.
- the projectile has a tapered nose with spiral flutes.
- FIG. 4 shows an alternative form of the present invention.
- the example small arms ammunition round 400 shown in Figure 4 includes a non-brass casing 410 including a stainless steel projectile housing portion 41 1 and an aluminum primer housing portion 412 which are press-fit together adjacent joint 415.
- a non-lead projectile 450 is housed within the casing (within projectile housing portion 41 1 ).
- the non-brass casing portion 410 includes a stainless steel portion and the non-lead projectile 450 includes a matrix of at least one epoxy, at least one non-epoxy polymer, and copper.
- the non-epoxy polymer can include nylon (either entirely or as a component thereof).
- the nose portion 452 of the projectile 450 is smoothly tapered and does not bear the spiral flutes of the previous example.
- a novel small arms round including an all stainless steel/aluminum cased, polycarbonate/copper tipped, high-performance cartridge.
- the resulting round is lightweight and exhibits high performance.
- the novel small arms rounds/cartridges reduce weight compared to heavy traditional ammo by as much as 30-60%.
- the projectiles exhibit a velocity increase of about 15-30% over conventional rounds, and reduce recoil by 10-25%. This increase in velocity is believed to be due to the lighter weight (lower mass) being accelerated by comparably similar forces developed by the similar amounts of gunpowder contained in the casings.
- the novel rounds eliminate lead and copper fouling in the gun barrels.
- the present invention provides a substantial weight savings per round, which can be extremely beneficial in military applications.
- a soldier that carries 200 rounds of 5.56mm ammunition into battle at a weight of about 5.2lbs can obviously carry a limited supply of ammunition.
- the present invention allows the soldier to carry the same number of rounds at half the weight or carry the same weight but twice the amount of ammunition (twice the number of rounds). Carrying twice the number of rounds can mean the difference between life and death in that the additional rounds can significantly extend the soldier's ability to fight.
- PF Power Factor
- the aluminum casing portion can be pure aluminum or can be an aluminum alloy.
- the aluminum alloy casing can comprise 7075 aluminum alloy.
- the aluminum alloy casing can comprise 7068 aluminum alloy.
- other aluminum alloys or pure or nearly pure aluminum can be employed, as selected by the skilled designer.
- the non-lead matrix can comprise one or more of the following materials: polymers; epoxies; nylon; copper particles; tungsten particles; depleted uranium; and/or other armor-piercing "heavy" metals and materials.
- the stainless steel non-brass casing (the stainless steel casing portion) can comprise one or more of: stainless steel; high nickel content stainless steel; high chromium stainless steel; and/or other non-brass metals and materials.
- the aluminum primer portion of the non-brass casing can comprise one or more of: aluminum; hardened aluminum; aircraft-grade 7XXX Series aluminum alloy(s) (zinc is a primary alloying agent for this series, and when magnesium is added in a smaller amount, the result is a heat-treatable, very high strength alloy.
- Other elements such as copper and chromium may also be added in small quantities.
- the most commonly known alloys are 7050 and 7075, which are widely used in the aircraft industry.
- the aluminum could also be a more or less pure aluminum which is then nickel plated.
- the aluminum could also be replaced with other non-brass materials, such as chromium molybnium which is nickel plated; mild steel which is nickel plated; and stainless steel. Note that nickel plating of non-stainless steel base materials is performed to prevent electrolysis of dissimilar metals.
- the non-lead matrix (Poly/Copper Matrix) comprises 80% powdered copper, 20% polymer, epoxy and nylon.
- the stainless steel non-brass casing portion comprises a 316 grade of stainless steel.
- the aluminum primer portion comprises 7078 aerospace grade aluminum alloy.
- the molded projectile could be made with an insert of a base material made of a solid, non-fragmenting material.
- a type of a "hybrid" frangible projectile could be provided, with an armor-piercing core or insert made of tungsten or depleted uranium, or other hardened or "heavy" metals and materials.
- the novel casing and projectile can be combined with hydrophilic lead-free primers. Such would result in an entirely lead-free ammunition, including the primer.
- the conventional ignition material contained in traditional primers contains lead and represents a serious environmental concern.
- the present invention can be provided in a variety of small arms calibers, including:
- the novel ammunition has completed the approval process of the novel 9mm Engagement Extreme (EE) and 9mm Cross Trainer (CT) ammunition.
- This testing included shooting 1 1 ,400 cartridges of the novel 9mm EE and 1 1 ,600 cartridges of the novel 9mm CT through a total of 18 pistols and 8 shooters.
- the shooters represented a range of consumers including experienced and inexperienced men and women of varying ages.
- the novel 9mm EE passed with an overall pass rate of 99.96% and the novel 9mm CT passed with an overall pass rate of 99.96%, as well.
- the ammunition passed the Pressure and Velocity threshold testing.
- the novel 9mm EE recorded an average velocity of 1 ,552 FPS with a SD of 1 1 and ES of 40 FPS.
- the novel 9mm CT recorded an average pressure of 37,541 PSI with a SD of 81 1 and ES of 3,837 PSI.
- the novel 9mm EE recorded an average velocity of 1 ,575 FPS with a SD of 1 1 and ES of 42 FPS.
- the novel 9mm EE recorded an average pressure of 36,740 PSI with a SD of 816 and ES of 3,338 PSI.
- a testing standard for pressure is that the pressure should not exceed a Maximum Probably Sample Mean (MPSM) and also should not exceed Maximum Extreme Variation (MEV).
- MPSM Maximum Probably Sample Mean
- MEV Maximum Extreme Variation
- SAAMI Sporting Arms and Ammunition Manufacturer's Institute
- the MPSM for standard pressure 9mm Luger is 37,800 PSI.
- the novel 9mm CT averaged 37,541 PSI and the novel 9mm EE averaged 36,740 PSI, which is below the MPSM.
- the MEV is defined by SAAMI as 5.16 times the standard deviation of the sample.
- MEV for the novel 9mm CT is calculated to be 4, 189 PSI, but our ES was 3,837 PSI.
- the MEV for the novel 9mm EE is calculated to be 4,21 1 PSI, but our ES was 3,338 PSI. Both standards of MPSM and MEV were met.
- a testing standard for velocity is that the velocity should not vary more than 5% of the mean. 5% of the average velocity for the novel 9mm CT is 78 FPS and for the novel 9mm EE is 79 FPS. The tested extreme spreads for velocity were 40 and 42, respectively.
- a testing standard for accuracy is that the ammunition must be capable of grouping five consecutive shots in a group 6" or less at 25 yards, from a rest with optical magnification allowed.
- test weapon used was an STI DVC Open chambered in 9mm. This pistol has a 5.4" barrel and has mounted C-More 6MOA Dot Sight. This gun was chosen due to the sight and ease of aim.
- targets were mounted to shoot out to 25 yards.
- a testing standard for Function/Jury Testing is that for each new product, a minimum of 10,000 cartridges is to be shot, through a minimum of ten weapons, with at least 6 testers/jurors. To meet the standard, the overall pass rate must be at or above 99.83%.
- Shooters are to be representative of the typical consumer, ranging from inexperienced men and women, to experienced men and women of varying sizes. Shooters are to shoot from four positions, for a total of 200 cartridges per shooter (50 per position). We used a total of eight jurors and a total of 18 pistols.
- novel ammunition were tested in gel, including the novel 9mm CT, the novel 9mm EE, the novel 9mm+P CT, and the novel 9mm+P EE, all through bare 10% Ballistic Ordinance Gelatin.
- the the novel 9mm+P EE ammunition was then tested through two intermediate barriers - 6061 T6 Aluminum and car windshield. The aluminum was positioned 10" in front of the gel. The windshield was positioned 10" in front of the gel at a compound angle.
- the novel 9mm EE +P - Bare Gel obtained 16-3 / 4" of penetration, 3-3/4" in diameter cavitation, and 100% Weight retention (no fragmentation).
- the novel 9mm CT +P - Bare Gel obtained 19-1/4" of penetration, approximately 2" in diameter cavitation, and 100% Weight retention (no fragmentation).
- the novel 9mm EE +P - Car Windshield obtained 12-1/4" of penetration, approximately 1 ⁇ 4" in diameter cavitation, and 70.5% Weight retention (fragmentation). Note: While shooting the windshield, it is possible to shoot through the same hole, or a weakened area of the windshield of glass and the bullet does not fragment.
- the novel ammunition described herein provides high performance in part due to elimination of the brass shell. Brass, because of its soft, malleable nature, absorbs a significant amount of energy at the time of the round being fired.
- the thick brass case walls and shell base stretch and expand, resulting in somewhat compromised velocity.
- the novel stainless steel case being less prone to stretching and deforming, and exhibiting superior hardness and having a greater modulus of elasticity, does not absorb nearly as much energy from the shot, resulting in more energy pushing the projectile and much higher velocities without increased pressures.
- the novel ammunition achieves a synergistic advantageous result. For example, if a standard 5.56/223 brass case is charged with a maximum amount of gunpowder (SAAMI max psi) and the 35 gr poly/copper projectile is loaded, the 35 gr bullet produces 3810 fps out of a test receiver rifle. That is what testing revealed. [0065] Now, the novel ammunition, charged with the identical type and weight of gunpowder, loaded with the same 35 gr poly/copper bullet, achieves a significant improvement in performance. Using the same test gun, the same gunpowder, everything as identical as can be achieved - the novel ammunition fires at a speed of 4120 fps with slightly less pressure. This is an increase of 310 fps, which is more than an 8% increase in performance gained from superior cartridge components, while using the same gunpowder. An 8% increase is very significant.
- novel ammunition achieves this performance increase with the same caliber, same powder, same bullet (projectile mass) and same gun, achieving 8% improvement in velocity performance.
- the present invention combines various disparate technologies to achieve an all stainless steel/aluminum cased, polycarbonate/copper tipped, high-performance cartridge (small arms round).
- the present invention accomplishes one or more of the following: (1 ) replaces brass shells with stainless steel and/or aluminum; (2) replaces lead-core copper-plated bullets (projectiles) with matrix projectiles, such as polycarbonate bullets; (3) employs fluid dynamics (ARX) instead of hydrostatic shock (mushroomed, fragmented, shrapnel lead); (4) achieves lightweight hi-performance cartridges that reduce weight compared to heavy traditional ammo, saving as much as 30-60% in weight; (5) increases projectile velocity 15-30%; (6) reduces recoil 10-25%; and (7) eliminates lead and copper fouling in gun barrels, and in the air.
- AX fluid dynamics
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762537632P | 2017-07-27 | 2017-07-27 | |
PCT/US2018/043888 WO2019023446A1 (en) | 2017-07-27 | 2018-07-26 | Small-arms ammunition with non-brass casing and non-lead projectile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3658848A1 true EP3658848A1 (en) | 2020-06-03 |
Family
ID=63165537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18752984.7A Withdrawn EP3658848A1 (en) | 2017-07-27 | 2018-07-26 | Small-arms ammunition with non-brass casing and non-lead projectile |
Country Status (7)
Country | Link |
---|---|
US (1) | US20190033046A1 (en) |
EP (1) | EP3658848A1 (en) |
AU (1) | AU2018306431A1 (en) |
CA (1) | CA3071267A1 (en) |
IL (1) | IL272255A (en) |
MX (1) | MX2020001081A (en) |
WO (1) | WO2019023446A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GR20210100796A (en) * | 2021-11-10 | 2023-06-13 | Αγαθοκλης Νικολαου Καραγιαννης | Fireball for use in firearms |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4212244A (en) * | 1977-12-09 | 1980-07-15 | Abraham Flatau | Small arms ammunition |
AU8824682A (en) | 1981-07-06 | 1983-02-02 | Palcher, J.J. | Ammunition casing and bullet |
GB8712082D0 (en) * | 1987-05-21 | 1987-07-22 | Sprintvale Ltd | Training aids |
US5133261A (en) * | 1990-06-25 | 1992-07-28 | Kelsey Jr Charles C | Devel small arms bullet |
WO2007014024A2 (en) * | 2005-07-22 | 2007-02-01 | Snc Technologies Corp. | Thin walled and two component cartridge case |
US8689696B1 (en) * | 2013-02-21 | 2014-04-08 | Caneel Associates, Inc. | Composite projectile and cartridge with composite projectile |
US9322623B2 (en) * | 2013-02-21 | 2016-04-26 | Einstein Noodles, Llc | Composite projectile and cartridge with composite projectile |
WO2014197079A1 (en) * | 2013-03-15 | 2014-12-11 | Nemec William Joseph | Advanced modular ammunition cartridges and systems |
CA2924103C (en) | 2013-09-24 | 2021-07-27 | Polycase Ammunition, Llc | Projectiles for ammunition and methods of making and using the same |
CN107923729A (en) | 2015-07-27 | 2018-04-17 | 壳牌冲击科技有限公司 | Firearm cartridge and manufacture method |
-
2018
- 2018-07-26 MX MX2020001081A patent/MX2020001081A/en unknown
- 2018-07-26 AU AU2018306431A patent/AU2018306431A1/en not_active Abandoned
- 2018-07-26 EP EP18752984.7A patent/EP3658848A1/en not_active Withdrawn
- 2018-07-26 CA CA3071267A patent/CA3071267A1/en not_active Abandoned
- 2018-07-26 WO PCT/US2018/043888 patent/WO2019023446A1/en active Search and Examination
- 2018-07-26 US US16/046,307 patent/US20190033046A1/en not_active Abandoned
-
2020
- 2020-01-26 IL IL272255A patent/IL272255A/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU2018306431A1 (en) | 2020-02-20 |
US20190033046A1 (en) | 2019-01-31 |
CA3071267A1 (en) | 2019-01-31 |
WO2019023446A1 (en) | 2019-01-31 |
MX2020001081A (en) | 2020-08-06 |
IL272255A (en) | 2020-03-31 |
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