| 12.7×108mm | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Heavy machine gun Anti-material rifle | |||||||||||||||||||||||
| Place of origin | USSR | |||||||||||||||||||||||
| Service history | ||||||||||||||||||||||||
| In service | 1935–present | |||||||||||||||||||||||
| Used by | Soviet Union and successor states | |||||||||||||||||||||||
| Wars | Winter War World War II Korean War Portuguese Colonial War Vietnam War Cambodian Civil War Cambodian–Vietnamese War Six-Day War War of Attrition Yom Kippur War Soviet–Afghan War Iran–Iraq War Gulf War Chechen War Iraq War War in Afghanistan Libyan Civil War Syrian Civil War | |||||||||||||||||||||||
| Specifications | ||||||||||||||||||||||||
| Bullet diameter | 12.98 mm (0.511 in) | |||||||||||||||||||||||
| Neck diameter | 13.95 mm (0.549 in) | |||||||||||||||||||||||
| Shoulder diameter | 18.90 mm (0.744 in) | |||||||||||||||||||||||
| Base diameter | 21.75 mm (0.856 in) | |||||||||||||||||||||||
| Rim diameter | 21.70 mm (0.854 in) | |||||||||||||||||||||||
| Rim thickness | 1.90 mm (0.075 in) | |||||||||||||||||||||||
| Case length | 108 mm (4.3 in) | |||||||||||||||||||||||
| Overall length | 147.50 mm (5.807 in) | |||||||||||||||||||||||
| Case capacity | 22.72 cm3 (350.6 gr H2O) | |||||||||||||||||||||||
| Maximum pressure | 360 MPa (52,000 psi) | |||||||||||||||||||||||
| Ballistic performance | ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| Test barrel length: 1000 mm Source(s): Maxim Popenker, modernfirearms.net12.7×108mm Cartridge, russianguns.ruNovosibirsk Cartridge Plant official siteTulammo official siteASVK Kord 12.7×108 and OSV-96 Youtube | ||||||||||||||||||||||||
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The 12.7×108mm cartridge is a 12.7 mmheavy machine gun and anti-materiel riflecartridge used by the former Soviet Union, the former Warsaw Pact, 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.
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.[2] Armor-piercing ammunition will penetrate around 25 mm of armor. Normal full metal jacket ammunition will only dimple tank armor, causing no damage.
Cartridge dimensions[edit]
The 12.7×108mm has 22.72 ml (350 grains) H2O cartridge case capacity.
12.7x108mm Ammo For Sale
12.7×108 maximum cartridge dimensions.[citation needed] All sizes in millimetres (mm).
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Americans would 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.
Incorrect interchangeability claims[edit]
It is often claimed[by whom?] that the US .50 BMG (12.7×99mm NATO) cartridge can be fired in Soviet/Russian 12.7×108mm machine guns. The 12.7×108mm was even called a '.51 caliber'. This often claimed interchangeability is an assumption made from[dubious] the 12.7×108mm being listed as '.511 caliber' in US intelligence publications during the Vietnam War. The bullets used for both cartridges are ~.51 inches in diameter. .50 caliber, 1/2 of an inch, is the diameter of the hole bored down the barrel of the gun first. Then rifling is cut all around the bored hole to a depth of .005'. Thus, .500 + .005 + .005 = .510.' Upon firing, the bullet engages the rifling, and .005' grooves are pressed into the surface of the bullet to impart spin to stabilize the bullet. Despite the similar bullet diameters, the dimensional differences between the two cartridges prevent either being correctly chambered in a firearm designed for the other.
Use by other nations[edit]
- People's Republic of China: 12.7mm Type 54
Anti-tank and anti-materiel rifles[edit]
- 6P62 anti-materiel assault rifle
- ČZW-127 anti-materiel sniper rifle
- Falcon OP-99 anti-material rifle
- KSVK anti-materiel sniper rifle
- OSV-96 anti-materiel sniper rifle
- PDSHP anti-materiel sniper rifle
- QBU-10 anti-materiel sniper rifle
- SVN-98 experimental anti-materiel rifle
- V-94 anti-tank/anti-materiel rifle
- Vidhwansak anti-materiel rifle
- Zastava M93 Black Arrow sniper rifle
- Zastava M12 Black Spear anti-materiel sniper rifle
- Zijiang M99 anti-materiel sniper rifle
- Zijiang & Poly M99-I/M99B-I/M06 anti-materiel sniper rifle
- Zijiang LR-2/LR-2A anti-materiel sniper rifle
Heavy machineguns[edit]
- Afanassijef-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
- 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 gun
See also[edit]
References[edit]
Russian 12.7x108 Ammo For Sale
- ^Technical Intelligence Bulletins May - June 2003Archived August 13, 2006, at the Wayback Machine
- ^http://www.armstrade.org/includes/periodics/news/2019/0301/115051260/detail.shtml
- Koll, Christian (2009). Soviet Cannon - A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 72. ISBN978-3-200-01445-9.
Further reading[edit]
- Борцов А.Ю. 'Пятилинейный', Мастер-ружье issue 110, May 2006, pp. 56–62