The newest DBP10 cartridge variant has a hardened steel-cored 4.6 grams (71 gr) bullet and a muzzle velocity of 915 metres per second (3,002 ft/s) and is designed to match all currently serving 5.8×42mm chambered weapons. It is reported to have very good accuracy at 600 metres (656 yd). It has an effective range of 800 metres (875 yd) and can penetrate 3 mm steel plates at a distance of 1,000 metres (1,094 yd). The bullet has a ballistic coefficient (G7 BC) of approximately 0.210. The DBP88 “heavy round” cartridge has a 5 grams (77 gr) bullet and a muzzle velocity of 870 metres per second (2,854 ft/s) from a standard barrel (Type 95 / QBZ-95, 463 mm barrel length), and 940 to 960 metres per second (3,084 to 3,150 ft/s) from the Type 95 LSW / Type 95 SAW / QBB-95 (557 mm barrel length), and 895 metres per second (2,936 ft/s) from the Type 88 / QBU-88 (620 mm barrel length). A cleaner-burning propellant and a non-corrosive primer is used for the DBP-87. Steel is less flexible than brass and therefore does not fill the chamber cavity as well when fired, decreasing the performance. To reduce the chance of rust, the case is covered in a thin layer of protective paint in dark brown. In particular, the cartridge case is made of steel, which is cheaper than brass. In order to save cost, several compromises were made. The steel core has a diameter of 4.1 millimetres (0.16 in). The bullet has a ballistic coefficient (G7 BC) of approximately 0.156. The DBP87/95 cartridge with 4.15 grams (64.0 gr) bullets has a muzzle velocity of 930 metres per second (3,051 ft/s) from a standard barrel (Type 95 / QBZ-95, 463 mm barrel length), and 940 to 960 metres per second (3,084 to 3,150 ft/s) from the Type 95 LSW (557 mm barrel length). The People's Liberation Army claims that the 5.8×42mm is superior to the 5.56×45mm NATO SS109 and the 5.45×39mm 7N6 stating it has better armor penetration of 10 mm at 300 meters, a flatter trajectory, and a higher retention of velocity and energy downrange. In addition, the twist rate in the revised 95-1 assault rifle was reduced from 240 mm to 210 mm. The groove diameter was decreased from 6.01 to 6.07 mm to 5.98 to 6.02 mm. The diameter of the lands was slightly increased from 5.8 to 5.84 mm to 5.82 to 5.86 mm.
The number of rifling grooves was increased from 4 to 6. To improve accuracy and barrel life the barrel was also redesigned. Both designs were finalized in 2010 and production began the same year. In June 2004, an improved version of the 5.8×42mm cartridge entered development as the matching ammunition for the revised assault rifle, Type 95-1.
#5.8x42mm vs 5.56x45 free
Cartridges like the American 5.56×45mm NATO, Soviet 5.45×39mm and 5.8×42mm allow a soldier to carry more ammunition for the same weight compared to their larger and heavier predecessor cartridges, have favourable maximum point-blank range or "battle zero" characteristics and produce relatively low bolt thrust and free recoil impulse, favouring light weight arms design and automatic fire accuracy. The 5.8×42mm is an example of an international tendency towards relatively small sized, light weight, high velocity military service cartridges. The DBP87 service round was quickly supplemented in 1988 by the DBP88 round which was loaded with a heavier more aerodynamic projectile for improved extended range performance. The Type 95 / QBZ-95 (Chinese: 轻武器,步枪,自动, 1995 Pinyin: Qīng wǔqì, Bùqiāng, Zìdòng, 1995 literally "Light weapon, Rifle, Automatic, 1995") 5.8 mm caliber assault rifle, firing the 5.8×42mm / DBP87 or the improved DBP95, is now the standard issue weapon in the PLA.
The 5.8×42mm / DBP87 was designed to replace the Soviet 7.62×39mm cartridge used by the People's Liberation Army (PLA). As of 2010 all 5.8×42mm cartridge variants are gradually succeeded by the DBP10 variant.Ĭhina started development of the 5.8×42mm cartridge in 1979 and finalized the cartridge in 1987. The 5.8×42mm “heavy round” cartridge has the same dimensions as the standard 5.8×42mm cartridge, but utilizes a longer streamlined bullet with a heavy steel core for increased performance at extended ranges and penetration. Another variant called the DBP88 “heavy round” was designed specifically for squad automatic weapons and designated marksman rifles. There is limited information on this cartridge, although the People's Liberation Army says that it is superior to the 5.56×45mm NATO and 5.45×39mm Soviet cartridges. The 5.8×42mm / DBP87 (" Dàn (弹) Bùqiāng (步枪) Pŭtòng (普通), 19 87" literally "Standard Rifle Cartridge, 1987") is a military rimless bottlenecked intermediate cartridge developed in the People's Republic of China.
0 kommentar(er)
