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9×39mm
File:7.62x39 and 9x39.png
Type Rifle
Place of origin{{ flag/core

| alias = Soviet Union | flag alias = Flag of the Soviet Union.png | flag alias-1923 = Flag of the Soviet Union 1923.png | flag alias-1955 = Flag of the Soviet Union 1955.png | flag alias-naval = Naval Ensign of the Soviet Union.png | flag alias-naval-1924 = Naval Ensign of the Soviet Union 1924.png | flag alias-naval-1935 = Naval Ensign of the Soviet Union 1935.png | link alias-naval = Soviet Navy | link alias-ice hockey = Soviet Union national ice hockey team | link alias-tennis = Russia {{{mw}}} Cup team | size = | name = Soviet Union | altlink = | altvar = | variant =


22x20px Russia
Specifications
Case typeRimless, bottleneck

The 9×39 mm is a Soviet / Russian rifle cartridge. It is based on the Russian 7.62×39 mm round, but with an enlarged neck to accommodate a 9 mm bullet. The cartridge was designed by N. Zabelin, L. Dvoryaninova and Y. Frolov of the TsNIITochMash in the 1980s. The intent was to create a subsonic cartridge for suppressed firearms for special forces units that had more power, range and penetration than handgun cartridges. The 5.45×39 mm cartridge introduced in 1974 for AK-74 lacks bullet weight for acceptable energy at subsonic velocities. The bullet of the 9×39 mm is approximately 16 g (Script error gr), double that of the 7.62×39 mm, and is subsonic. This slow velocity does not produce a sonic boom, but does limit the effective range of a weapon when compared to non-suppressed assault rifles. The round has an effective lethal range of 300 to 400 meters and a maximum penetration of up to 10 mm of steel. Like the 5.45×39mm cartridge, 9×39mm SP-5 features an airpocket in the tip, which vastly improves its capability to yaw; with such a long projectile, yawing can be quite violent.

VariantsEdit

Cartridge SP-5 SP-5UZ SP-6 SP-6UCh PAB-9 SPP BP
Type sniper test (increased charge) armor piercing training armor piercing sniper (increased penetration) armor piercing
Bullet weight up to 16.8 grams about 16 grams up to 17.3 grams
Muzzle velocity 280–320 m/s 280–320 m/s 280–320 m/s
Muzzle Energy 658.5-860.1 J 678.1-885.7 J
Maximum penetration up to 10 mm of steel up to 10 mm of steel

SP-5 (7N8) - The SP-5 (СП-5) (SP: Spetsialnyj Patron; "Special Cartridge") was developed by Nikolai Zabelin. It is a conventional lead core FMJ bullet, but developed for accuracy.

SP-5UZ - The SP-5UZ (СП5-УЗ) is an SP-5 variant with an increased charge intended for a factory-specific strength testing of the weapons.

SP-6 (7N9) - The SP-6 (СП-6) was developed by Yuri Frolov. It has a hardened metal armor piercing core. It can penetrate 2 mm (Bad rounding hereScript error in) of steel at 500 meters or 6 mm (Bad rounding hereScript error in)of steel, 2.8 mm (Bad rounding hereScript error in) of titanium or 30 layers of Kevlar at 200 meters. At 100 meters it penetrates 8 mm (Bad rounding hereScript error in) of steel, while retaining enough power to neutralize a soft target behind it.

SP-6UCh - The SP-6UCh (СП-6УЧ) is an SP-6 variant intended for training.

PAB-9 (7N12) - The SP-6's bullet is expensive, so an attempt was made to make a lower-cost version of the cartridge. The PAB-9 (ПАБ-9) used a stamped rather than machined steel core. It sacrificed too much performance to be usable. As of 2011, its usage is prohibited.[1]

SPP - The SPP (СПП) (SPP: Snaiperskie Povishennaya Probivaemost; "Sniper - Increased Penetration") is a sniper round with an increased penetration.

BP - The BP (БП) (BP: Broneboin'ie Pulya; "Armor-Piercing Bullet") is an armor-piercing round.

WeaponsEdit

ReferencesEdit

External linksEdit

Cartridges

Bullets

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