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12.7×108mm

The 12.7×108mm cartridge is a 12.7 mm heavy machine gun and anti-materiel rifle cartridge used by the former Soviet Union, the former Warsaw Pact countries, modern Russia, China and other countries. It was invented in 1934 to create a cartridge like the German 13.2mm TuF anti-tank rifle round and the American .50 Browning Machine Gun round (12.7×99mm NATO).

12.7×108mm
A 12.7×108mm cartridge
TypeHeavy machine gun
Anti-materiel rifle
Place of originUSSR
Service history
In service1935–present
Used bySoviet Union and successor states
WarsWinter War
World War II
Korean War
Portuguese Colonial War
Vietnam War
Cambodian Civil War
Cambodian–Vietnamese War
Six-Day War
War of Attrition
The Troubles
Yom Kippur War
Soviet–Afghan War
Iran–Iraq War
Gulf War
Chechen War
Iraq War
War in Afghanistan
Libyan Civil War
Syrian Civil War
Nagorno-Karabakh conflict
Russo-Ukrainian War
Specifications
Bullet diameter12.98 mm (0.511 in)
Neck diameter13.95 mm (0.549 in)
Shoulder diameter18.90 mm (0.744 in)
Base diameter21.75 mm (0.856 in)
Rim diameter21.70 mm (0.854 in)
Rim thickness1.90 mm (0.075 in)
Case length108 mm (4.3 in)
Overall length147.50 mm (5.807 in)
Case capacity22.72 cm3 (350.6 gr H2O)
Maximum pressure360 MPa (52,000 psi)
Ballistic performance
Bullet mass/type Velocity Energy
48.3 g (745 gr) API B32 57-BZ-542 820–860 m/s (2,700–2,800 ft/s) 16,240–17,861 J (11,978–13,174 ft⋅lbf)
55.4 g (855 gr) API-HC BS 820 m/s (2,700 ft/s) 18,625 J (13,737 ft⋅lbf)
56.6 g (873 gr) API-HC BS 7-BZ-1 820–825 m/s (2,690–2,710 ft/s) 19,029–19,621 J (14,035–14,472 ft⋅lbf)
59.2 g (914 gr) Sniper SN 7N34 770–785 m/s (2,530–2,580 ft/s) 17,549–18,240 J (12,943–13,453 ft⋅lbf)
44.1 g (681 gr) Tulammo 680 gr hunting cartridge 916–923 m/s (3,010–3,030 ft/s) 18,501–18,785 J (13,646–13,855 ft⋅lbf)
Test barrel length: 1000 mm

It is used in the same roles as the NATO .50 BMG (12.7×99mm NATO) cartridge. The two differ in bullet shape and weight, and the casing of the 12.7×108mm is slightly longer, and its larger case capacity allow it to hold slightly more of a different type of powder. The 12.7×108mm can be used to engage a wide variety of targets on the battlefield, and will destroy unarmored vehicles, penetrate lightly armored vehicles and damage external ancillary equipment (i.e.: searchlights, radar, transmitters, vision blocks, engine compartment covers) on heavily armored vehicles such as tanks.[1] It will also ignite gasoline and—since 2019—diesel fuel (experimental "Avers" AP/I round).[2]

Cartridge dimensions

The 12.7×108mm has 22.72 ml (350 grains) H2O cartridge case capacity.

 

12.7×108 maximum cartridge dimensions.[citation needed] All sizes in millimeters (mm).

Americans define the shoulder angle at alpha/2 ≈ 18.16 degrees.

According to guidelines the 12.7×108mm case can handle up to 360 MPa (52,213 psi) piezo pressure. In C.I.P. regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum CIP pressure to certify for sale to consumers.

Cartridge types

Soviet and Russian 12.7×108 types

Б-30 / B-30
First version of 1930. Armor-piercing (бронебойная) bullet weighing 49 g and 64 mm long with hardened steel core.[3] Replaced by B-32.
БЗТ / BZT
Pre-WW2 armor-piercing incendiary (зажигательно) tracer.[3] Replaced by BZT-44.
Б-32 / B-32 (GRAU# 57-BZ-542, 7-BZ-2)
Steel-cored API bullet. Main type in use.[3] Penetrates 20mm NATO medium-hard RHA from 500m at 0° when fired out of DShKM. Penetrates 20mm 2P steel from 100m at 0° when fired out of NSV-12.7. First produced 1936; named after the B-32 7.62×54mmR ammunition of 1932.
БС-41 / BS-41
API bullet weighing 55.4 g and 51 mm long with a cemented carbide (Re8 WC-Co) core. Produced in small quantities at the beginning of WWII for the 12.7 mm Sholokhov anti-tank rifles (PTRSh-41).
БЗТ-44 / BZT-44 (GRAU# 57-BZT-542)
APIT with brighter tracer, usually used with B-32. Complemented by BZT-44M (GRAU# 57-BZT-542M) of 2002 with subdued tracer.
БЗФ-46 / BZF-46
API bullet with (white) phosphorus (фосфорная). Aircraft MG round.
БС / BS (GRAU# 7-BZ-1)[4]
API bullet with cemented carbide (VK8 WC-Co, commonly called a "cermet" in Russian) core, developed in 1972. Ballistics also similar to B-32.
МДЗ / MDZ (GRAU# 7-3-2)
Immediate-action incendiary. Used in belt with B-32 and BZT-44(M).[5]
12,7 1СЛ / 12.71SL (GRAU# 9-A-4012)
12,7 1СЛТ / 12.7 1SLT (GRAU# 9-A-4427)
Tandem / duplex cartridge with two bullets inside, in normal and tracer versions. Developed 1985 for use by helicopter against soft targets.[6]
12,7СН / 12.7SN (GRAU# 7N34)
Sniper cartridge (FMJ; AP). Bullet weighs 59.2 g and travels at ~790-800 m/s. Bullet consists of hardened tool steel tip and lead body. Able to defeat lightly-armored vehicles at 1500 m and 10 mm RHA at 800 m.[7] Entered production in the 2000s.[8]
12.7 Blank (GRAU# 7H1)
12.7 UCH Dummy (GRAU# 7H2)

Note that some WW2 bullets share designations with ones for 14.5×114mm.

Use

Anti-tank and anti-materiel rifles

Heavy machine guns

See also

References

  1. ^ Technical Intelligence Bulletins May - June 2003 August 13, 2006, at the Wayback Machine
  2. ^ "ЦАМТО / Новости / В России создали новые зажигательные патроны калибра 12,7 мм". armstrade.org. Retrieved 2021-05-07.; Patent RU2655338C1
  3. ^ a b c Гнатовский Н. И., Шорин П. А. История развития отечественного стрелкового оружия. — М.: Военное изд-во Министерства обороны СССР, 1959, с. 235
  4. ^ сайт ЗАО НПЗ
  5. ^ "12,7x107 крупнокалиберные патроны". 22 February 2018.
  6. ^ "12.7x107 large-caliber cartridges". gunrf.ru. 22 February 2018.
  7. ^ "12.7 mm 7N34 sniper cartridge 7N34". Catalog Rosoboronexport.
  8. ^ АСВК КОРД 12.7х108 и ОСВ-96 - YouTube
  • Koll, Christian (2009). Soviet Cannon - A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 72. ISBN 978-3-200-01445-9.
  • Maxim Popenker, modernfirearms.net
  • Cartridge Plant official site
  • Tulammo official site
  • ASVK Kord 12.7×108 and OSV-96 Youtube

Further reading

  • Борцов А.Ю. "Пятилинейный", Мастер-ружье issue 110, May 2006, pp. 56–62

External links

  • 12.7 mm cartridges for more types
  • Russian Ammunition Page

108mm, cartridge, heavy, machine, anti, materiel, rifle, cartridge, used, former, soviet, union, former, warsaw, pact, countries, modern, russia, china, other, countries, invented, 1934, create, cartridge, like, german, anti, tank, rifle, round, american, brow. The 12 7 108mm cartridge is a 12 7 mm heavy machine gun and anti materiel rifle cartridge used by the former Soviet Union the former Warsaw Pact countries modern Russia China and other countries It was invented in 1934 to create a cartridge like the German 13 2mm TuF anti tank rifle round and the American 50 Browning Machine Gun round 12 7 99mm NATO 12 7 108mmA 12 7 108mm cartridgeTypeHeavy machine gunAnti materiel riflePlace of originUSSRService historyIn service1935 presentUsed bySoviet Union and successor statesWarsWinter WarWorld War IIKorean WarPortuguese Colonial WarVietnam WarCambodian Civil WarCambodian Vietnamese WarSix Day WarWar of AttritionThe TroublesYom Kippur WarSoviet Afghan WarIran Iraq WarGulf WarChechen WarIraq WarWar in AfghanistanLibyan Civil WarSyrian Civil WarNagorno Karabakh conflictRusso Ukrainian WarSpecificationsBullet diameter12 98 mm 0 511 in Neck diameter13 95 mm 0 549 in Shoulder diameter18 90 mm 0 744 in Base diameter21 75 mm 0 856 in Rim diameter21 70 mm 0 854 in Rim thickness1 90 mm 0 075 in Case length108 mm 4 3 in Overall length147 50 mm 5 807 in Case capacity22 72 cm3 350 6 gr H2O Maximum pressure360 MPa 52 000 psi Ballistic performanceBullet mass type Velocity Energy48 3 g 745 gr API B32 57 BZ 542 820 860 m s 2 700 2 800 ft s 16 240 17 861 J 11 978 13 174 ft lbf 55 4 g 855 gr API HC BS 820 m s 2 700 ft s 18 625 J 13 737 ft lbf 56 6 g 873 gr API HC BS 7 BZ 1 820 825 m s 2 690 2 710 ft s 19 029 19 621 J 14 035 14 472 ft lbf 59 2 g 914 gr Sniper SN 7N34 770 785 m s 2 530 2 580 ft s 17 549 18 240 J 12 943 13 453 ft lbf 44 1 g 681 gr Tulammo 680 gr hunting cartridge 916 923 m s 3 010 3 030 ft s 18 501 18 785 J 13 646 13 855 ft lbf Test barrel length 1000 mmIt is used in the same roles as the NATO 50 BMG 12 7 99mm NATO cartridge The two differ in bullet shape and weight and the casing of the 12 7 108mm is slightly longer and its larger case capacity allow it to hold slightly more of a different type of powder The 12 7 108mm can be used to engage a wide variety of targets on the battlefield and will destroy unarmored vehicles penetrate lightly armored vehicles and damage external ancillary equipment i e searchlights radar transmitters vision blocks engine compartment covers on heavily armored vehicles such as tanks 1 It will also ignite gasoline and since 2019 diesel fuel experimental Avers AP I round 2 Contents 1 Cartridge dimensions 2 Cartridge types 2 1 Soviet and Russian 12 7 108 types 3 Use 3 1 Anti tank and anti materiel rifles 3 2 Heavy machine guns 4 See also 5 References 6 Further reading 7 External linksCartridge dimensions EditThe 12 7 108mm has 22 72 ml 350 grains H2O cartridge case capacity 12 7 108 maximum cartridge dimensions citation needed All sizes in millimeters mm Americans define the shoulder angle at alpha 2 18 16 degrees According to guidelines the 12 7 108mm case can handle up to 360 MPa 52 213 psi piezo pressure In C I P regulated countries every rifle cartridge combo has to be proofed at 125 of this maximum CIP pressure to certify for sale to consumers Cartridge types EditSoviet and Russian 12 7 108 types Edit B 30 B 30 First version of 1930 Armor piercing bronebojnaya bullet weighing 49 g and 64 mm long with hardened steel core 3 Replaced by B 32 BZT BZT Pre WW2 armor piercing incendiary zazhigatelno tracer 3 Replaced by BZT 44 B 32 B 32 GRAU 57 BZ 542 7 BZ 2 Steel cored API bullet Main type in use 3 Penetrates 20mm NATO medium hard RHA from 500m at 0 when fired out of DShKM Penetrates 20mm 2P steel from 100m at 0 when fired out of NSV 12 7 First produced 1936 named after the B 32 7 62 54mmR ammunition of 1932 BS 41 BS 41 API bullet weighing 55 4 g and 51 mm long with a cemented carbide Re8 WC Co core Produced in small quantities at the beginning of WWII for the 12 7 mm Sholokhov anti tank rifles PTRSh 41 BZT 44 BZT 44 GRAU 57 BZT 542 APIT with brighter tracer usually used with B 32 Complemented by BZT 44M GRAU 57 BZT 542M of 2002 with subdued tracer BZF 46 BZF 46 API bullet with white phosphorus fosfornaya Aircraft MG round BS BS GRAU 7 BZ 1 4 API bullet with cemented carbide VK8 WC Co commonly called a cermet in Russian core developed in 1972 Ballistics also similar to B 32 MDZ MDZ GRAU 7 3 2 Immediate action incendiary Used in belt with B 32 and BZT 44 M 5 12 7 1SL 12 71SL GRAU 9 A 4012 12 7 1SLT 12 7 1SLT GRAU 9 A 4427 Tandem duplex cartridge with two bullets inside in normal and tracer versions Developed 1985 for use by helicopter against soft targets 6 12 7SN 12 7SN GRAU 7N34 Sniper cartridge FMJ AP Bullet weighs 59 2 g and travels at 790 800 m s Bullet consists of hardened tool steel tip and lead body Able to defeat lightly armored vehicles at 1500 m and 10 mm RHA at 800 m 7 Entered production in the 2000s 8 12 7 Blank GRAU 7H1 12 7 UCH Dummy GRAU 7H2 Note that some WW2 bullets share designations with ones for 14 5 114mm Use EditAnti tank and anti materiel rifles Edit AMR 2 anti materiel sniper rifle CZW 127 anti materiel sniper rifle Falcon OP 99 anti material rifle Gepard anti materiel rifles KSVK anti materiel sniper rifle OSV 96 anti materiel sniper rifle PDSHP anti materiel sniper rifle QBU 10 anti materiel sniper rifle QBU 201 Snipex M SVN 98 experimental anti materiel rifle V 94 anti tank anti materiel rifle Vidhwansak anti materiel rifle Zastava M93 Black Arrow anti materiel sniper rifle Zastava M12 Black Spear anti materiel sniper rifle Zijiang M99 anti materiel sniper rifle Zijiang amp Poly M99 I M99B I M06 anti materiel sniper rifle Zijiang LR 2 LR 2A anti materiel sniper rifleHeavy machine guns Edit 6P62 handheld machine gun Afanasev A 12 7 heavy machine gun DShK heavy machine gun Berezin UB aircraft machine gun CS LM5 Gatling machine gun M17G 12 7mm hatch machine gun NSV heavy machine gun Kord heavy machine gun Type 77 heavy machine gun W85 QJC88 heavy machine gun QJZ 89 heavy machine gun Zastava M02 Coyote heavy machine gun Yak B 12 7mm Gatling gun Zastava M87 heavy machine gun Yu 12 7 aircraft gunSee also Edit20 mm caliber 14 5 114mmReferences Edit Technical Intelligence Bulletins May June 2003 Archived August 13 2006 at the Wayback Machine CAMTO Novosti V Rossii sozdali novye zazhigatelnye patrony kalibra 12 7 mm armstrade org Retrieved 2021 05 07 Patent RU2655338C1 a b c Gnatovskij N I Shorin P A Istoriya razvitiya otechestvennogo strelkovogo oruzhiya M Voennoe izd vo Ministerstva oborony SSSR 1959 s 235 sajt ZAO NPZ 12 7x107 krupnokalibernye patrony 22 February 2018 12 7x107 large caliber cartridges gunrf ru 22 February 2018 12 7 mm 7N34 sniper cartridge 7N34 Catalog Rosoboronexport ASVK KORD 12 7h108 i OSV 96 YouTube Koll Christian 2009 Soviet Cannon A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12 7mm to 57mm Austria Koll p 72 ISBN 978 3 200 01445 9 Maxim Popenker modernfirearms net Cartridge Plant official site Tulammo official site ASVK Kord 12 7 108 and OSV 96 YoutubeFurther reading EditBorcov A Yu Pyatilinejnyj Master ruzhe issue 110 May 2006 pp 56 62External links Edit12 7 108 large caliber cartridges 12 7 mm cartridges for more types Russian Ammunition Page Retrieved from https en wikipedia org w index php title 12 7 108mm amp oldid 1141757945, wikipedia, wiki, book, books, library,

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