 the gryazev-shipunov gsh-30-2 (ÐÐ¨-30-2) or gsh-2-30 is a powerful dual-barrel autocannon developed for use on certain soviet military aircraft. the cannon is not related to the gryazev-shipunov gsh-30-1, but is a recoil-operated cannon using the gast principle, like the gryazev-shipunov gsh-23l. rate of fire is about 3,000 rounds per minute. the weapon is designed to be rugged and resistant to dirt. depleted uranium enhanced armor-piercing shells suitable for the gsh-30-2 are operationally qualified. the gsh-30-2 is carried by the sukhoi su-25 ground attack plane and in external gun pods. it measures 2044 Ã 222 Ã 195&nbsp;mm, with a barrel length of 1500&nbsp;mm and a weight of 105&nbsp;kg. the gsh-30k is a modified version with 2400&nbsp;mm long water-cooled barrels, a variable rate of fire, and dimensions of 2944 Ã 222 Ã 195&nbsp;mm. it is used on a fixed mounting on late model mi-24 helicopters, e.g. the mi-24p. ==specifications (gsh-30-2)== * manufacturer: kbp instrument design bureau * type: dual-barrel automatic cannon * caliber: 30x165 mm, electrically primed * operation: gast principle * length: 2044&nbsp;mm * barrel length: 1500&nbsp;mm * weight (complete): 105&nbsp;kg * rate of fire: 3000 rpm * muzzle velocity: 870&nbsp;m/s * projectile weight: 390 g * mounting platforms: sukhoi su-25 "frogfoot" ==specifications (gsh-30-2k)== * manufacturer: kbp instrument design bureau * type: dual-barrel automatic cannon * caliber: 30x165 mm * operation: gast principle * length: 2944&nbsp;mm * barrel length: 2400&nbsp;mm * weight (complete): 126&nbsp;kg * rate of fire: 300 rpm (low) - 2,000~2,600 rpm (high) * muzzle velocity: 940 m/s * projectile weight: 390 g * mounting platforms: mil mi-24p "hind" ==see also== * list of russian weaponry * list of multiple barrel firearms ==references==  *{{cite book |
30_mm_artillery Aircraft_guns Aircraft_guns_of_the_Soviet_Union Automatic_cannons