New Cartridge Design for Assault Rifle

• Autorzy: Lisý Peter , Daniel Martin

Identyfikatory

DOI

10.5604/01.3001.0014.1989

• Języki publikacji: EN

Abstrakty

EN

The article deals with the possible design of a new cartridge for an automatic assault rifle. This hypothetical design is based on the analysis of five automatic assault rifle cartridges which are currently used in armies: 7.62×51 mm NATO, 7.62×39 mm M. 43, 5.56×45 mm NATO and also another two cartridges which are under testing both 6.8×43 mm Rem. SPC and 6.5×38 mm Grendel. The analysis of a new cartridge including internal ballistics, external ballistics, and terminal ballistics energy disposed to the target upon an impact is introduced in the article. The goal was to create a cartridge that would have better ballistic performance than 5.56×45 mm NATO and it would still possess enough accuracy of fire and speed, so that it could dispose at least minimal kinetic energy necessary to incapacitate individuals. Also it is important to maintain the constancy of this effect for the long distance shooting, somewhere around 500 m, during battles in an open area (effective range of 5.56×45 mm automatic assault rifles is normally of about 300 m what only suffices in close quarter battles). To achieve it, the bullet must have the higher sectional density than the 5.56×45 mm cartridge. The sectional density reflects the capability of bullet to penetrate through the human tissue within the requirements of wound ballistics. Based on the analysis, the value of sectional density should be approximately of 0.21 g/mm2. The function of fully automatic firing depends on the size of the recoil energy of a weapon which is also related to the muzzle energy that cannot surpass the amount of 2 500 J. The new cartridge design is based on the 6 mm Scenar bullet (FMJ - Full Metal Jacket bullet with a weight of 5.8 g) made by the Lapua Company. All the ballistic parameters must be within the intervals of strength and construction possibilities of small arms ammunition. To create a possible variation of the mentioned cartridge where its bullet will be powered by a nitrocellulose propellant (originally made in Czech Republic) and a new cartridge case will be created.

Słowa kluczowe

EN

ammunition; automatic rifle; assault rifles; ballistics

• Wydawca: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
• Rocznik: 2020
• Tom: Vol. 11, Nr 2 (40)
• Strony: 9--24
• Opis fizyczny: Bibliogr. 20 poz., fot., tab., rys., wykr.

Twórcy

autor

Lisý Peter

• Department of Mechanical Engineering, Armed Forces Academy of Gen. M.R. Štefánik, Demänová 393, 031 01 Liptovský Mikuláš 6, Slovak Republic

autor

Daniel Martin

• Department of Mechanical Engineering, Armed Forces Academy of Gen. M.R. Štefánik, Demänová 393, 031 01 Liptovský Mikuláš 6, Slovak Republic

Bibliografia

• [1] Williams G.A. 2009. “The great calibre conspiracy”. Jane´s Defence Weekly, 11th September, 2009.
• [2] US Army ARDEC. UK MoD /British Army analysis 2009-2014. Available on the Internet: <https://uklandpower.com/2017/11/29/the-case-for-a-new military-calibre/>
• [3] White A. 2009. “UK forces take on small-arms lessons from Afghanistan”. Jane´s International Defence Review. October, 2009.
• [4] Williams G.A., N. Drummond. 2009. “Time to bite the bullet over under-fire ammo”. Jane´s Defence Weekly. 11th November, 2009.
• [5] Williams G.A. 2014. “Design dilemma: small arms and ammunition Development”. Jane´s International Defence Review. September, 2014.
• [6] White A. 2018. “Personal effects”. Jane’s Defence Weekly. 2nd May, 2018.
• [7] Caras I. 1995. Ammunition for small arms (in Czech language). Prague, Czech Republic: ARS–ARM.
• [8] AR 6.5 Grendel vs. 5.56 vs. 300 AAC Blackout. Available on the Internet: <https://www.ingunowners.com>
• [9] Williams G.A. 2012. The next NATO rifle and machine gun cartridge? Available on the Internet: <https://www.ingunowners.com/forums/long-guns/251101-ar-6-5grendel-vs-5-56-vs-300-aac-blackout-4.html>
• [10] Lapua Product Catalog, 2015. Available on the Internet: <http://wp-content/uploads/Katalog-Lapua-2015-ProductCatalog.pdf>
• [11] Bryan L. 2008. Applied Ballistics for Long Range Shooting. Applied Ballistics, Cedar Springs.
• [12] Lapua Scenar-L Bullets 243 Caliber, 6 mm (243 Diameter). Available on the Internet: <https://www.midwayusa.com/product/492294/lapua-scenar-l-bullets-243-caliber-6mm-243-diameter-90-grain-hollow point -boat-tail-box-of-100>
• [13] Available on internet:<http://www.lapua.com/en/ammunition/calibers/6mm-br-norma>
• [14] Lisý Peter, Mário Štiavnický. 2011. Influence of the barrel oscillations into accuracy of small arms. In Proceedings of International Conference on Military Technologies 1737-1744. Brno, Czech Republic.
• [15] Štiavnický Mário, Peter Lisý. 2013. “Influence of Barrel Vibration on the Barrel Muzzle Position at the moment when Bullet Exits Barrel”. Advanced in Military Technology 8 (1) : 89-102.
• [16] Lisý Peter, Mário Štiavnický. 2014. “Weapon Barrel and its Additional Accessories”. Problemy mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa - Problems of Mechatronics. Armament, Aviation, Safety Engineering 5 (1) : 9-24.
• [17] 6.5 Grendel with 90 gr TNT® HP. Available on the Internet: <https://www.speerammo.com/media/d7ece5cb4bbe453392b2a7305a381 83e.pdf>
• [18] Nathaniel F. 2015. Not So Special: A Critical View of the 6.8 mm SPC. Available on the internet: <http://www.thefirearmblog.com/blog/2015/04/04/not-so-special-a-critical-view-of-the-6-8mm-spc/>
• [19] Daniau E. 2017. Towards a “600 m” lightweight General Purpose Cartridge. DGA Techniques Terrestres, Bourges, 2017. Available on the Internet: <htpp://quarryhs.co.uk/Emeric2017.pdf>
• [20] Drummond N. 2017. The Case for a New Military Calibre. Available on the Internet: <https://uklandpower.com/2017/11/29/the-case-for-a-new-military.calibre.calibre/>.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).