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30 mm ammunition for AK-230
Регіон
China
Romania
Категорія
Боєприпаси, ракети та високоточне озброєння
The 30 mm ammunition, for the AK-230, is fixed with the projectile rigidly secured to the cartridge case by two 360º crimping rings. These engage in cannelures on the projectile, just behind two copper or gilding metal drive bands. The rimless cartridge cases are necked and have a wide extraction groove. There are two operational rounds produced, both with KB-2 electrical primers in the cartridge base. Muzzle velocity for both rounds is 1,050 m/s and effective slant range is 4,000 m. UOF-83 D HE The streamlined
projectile involved with this round is the OF-83 D which weighs 270 g and contains 30 g of A-IX-2 explosive (a desensitised RDX/TNT mixture); the point impact fuze employed is the MG-30. The cartridge case contains 190 g of BPGR propellant. The Chinese 30 mm Type 69 only fires a locally produced variant of this round. UBR-83 AP-T The projectile involved with this round is the BR-83 which has a conical armour-piercing ogive; it does not contain explosive so does not have a fuze. The projectile weighs 350 g while the cartridge case contains 190 g of BPGR propellant. Inert practice and drill rounds are known to exist. The 30 mm AK-230 was developed during the late 1950s and entered service in 1960. It is a water-cooled, twin-barrelled weapon system intended for the short-range defence of warships or as the main armament of small vessels; the rate of fire is 1,000 rds/min from both barrels. It is possible that the guns involved were developed from aircraft cannon. The 30 mm AK-230 is used extensively and has been equally widely exported. It has been produced in China as the 30 mm Type 69 twin-barrel naval gun. Applications include AK-230 Twin 30 mm mounting; NN-30 naval gun; twin barrel-mounted naval gun 30 mm Type 69 twin-barrel naval gun.