5.8 x 42 mm

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5.8 x 42 mm
5.8x42 mm.jpg
general information
caliber 5.8 x 42 mm
Sleeve shape Bottle neck sleeve, rimless
Dimensions
Sleeve shoulder ⌀ 9.35 mm
Sleeve neck ⌀ 6.67 mm
Floor ⌀ 6.00 mm
Cartridge bottom ⌀ 10.42 mm
Sleeve length 42.07 mm
Cartridge length 61.07 mm
Weights
Bullet weight 4.26 g
Powder weight 1.8 g
total weight 12.5 g
Technical specifications
Speed ​​v 0 930 m / s
Max. Gas pressure 2861 bar
Bullet energy E 0 1842 J
Lists on the subject

The 5.8 × 42 mm is a modern Chinese medium cartridge . It was developed at the end of the 1980s - following the trend towards smaller calibers - to replace the standard 7.62 × 39 mm M 43 cartridge . After the development of the cartridge, the Chinese defense industry developed a number of modern assault rifles and machine guns for this ammunition.

development

Based on the experience of the US armed forces in the Vietnam War with the new 5.56 mm small-caliber ammunition, the Soviet Union developed the AK-74 with the corresponding 5.45 × 39 mm cartridge . The Chinese armaments industry and the Chinese military were informed about these developments - not least because of the arms aid for Vietnam, as a result of which prey weapons and ammunition were very likely to reach China. In March 1971, the so-called "Conference 713" took place in Beijing , at which future developments in the infantry weapons sector were discussed and criteria for infantry weapons and ammunition were established.

The new ammunition to be developed should have a caliber of around 6 mm and a muzzle velocity of around 1000 m / s. Compared to the 7.62 × 39 mm standard cartridge, the recoil and weight should be reduced, while precision and ballistics should be improved at the same time.

At the next “Conference 744” the caliber was set to either 5.8 or 6 mm. Seven different designs were presented for the case, which required total cartridge lengths between 56 and 59.5 mm.

The actual development began in 1978. In 1979, the caliber 5.8 mm and a case length of 42 mm were determined as the final dimensions.

For extended field tests, a large number of Type 87 assault rifles were produced, which technically corresponded to the Type 81 which had been converted to the new cartridge .

In 1987 the development was completed and the cartridge was added to the armament of the People's Liberation Army as DBP87 .

DBP88

In 1988, work began on a variant with a heavier bullet and better terminal ballistics. The bullet weighs 5.0 g and has a muzzle velocity of 900 m / s.

variants

The cartridges are referred to as Dàn Bùqiāng Pŭtòng (DBP), dt .: standard rifle cartridge, plus the year of the takeover into the armament. All variants have a sleeve made of painted steel and Berdan ignition .

  • DBP87: The original version with a 24.2 mm long full metal jacket and a steel core. The hardened steel core is 16 mm long, 4 mm in diameter and weighs 1.5 g. He is sitting on the floor.
  • DBP88: with a heavier bullet (5.0 g) and increased charge. Mainly for the lMG variant of the Type 95 , but is also used in the QBU-88 telescopic sight rifle and the QJY-88 universal machine gun . The steel core of the slightly longer and more aerodynamically shaped bullet sits in the front part.
  • DBP95: Improved version of DBP87 from 1995 with different powder and corrosion-free primer .

Services

The performances of the 5.8 × 42 mm are generally classified somewhat above both the Soviet 5.45 × 39 mm and the American 5.56 × 45 mm NATO . The 5.8 × 42 mm should have a more stretched ballistic curve and higher energy as well as penetrating power .

cartridge 5.8 × 42 mm (DBP85) 5.45 × 39 mm (7N6) 5.56 × 45 mm NATO (SS109)
Total length (mm) 61.07 56.75 57.40
Sleeve length (mm) 42 39 45
Cartridge bottom diameter (mm) 10.42 10.00 9.60
Mass (g) 16.7 10.5 11.2
Bullet mass (g) 4.26 3.43 3.95
Powder charge (g) 1.8 1.85 1.62
v 0 (m / s) 930 960 940
Bullet energy (J) 1842 1581 1745

Individual evidence

  1. ↑ a b c d e f Timothy G. Yan: Chinese 5.8mm Infantry Small Arms Ammunition. In: smallarmsreview.com. 2014, accessed on November 13, 2016 .
  2. ^ Anthony G. Williams: Assault rifles and their ammunition. In: quarryhs.co.uk. November 2014, accessed on November 13, 2016 .
  3. ↑ a b c 5.8x42mm Chinese. In: weaponsystems.net. Retrieved November 13, 2016 .

Web links

Commons : 5.8 × 42 mm  - collection of images, videos, and audio files