5.6×39mm
Ammunition cartridge
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The 5.6Ã39mm, also known in the U.S. as .220 Russian, is a cartridge developed in 1961 for deer hunting in the USSR.[3] It fires a 5.6mm projectile from necked down 7.62Ã39mm brass. While it originally re-used 7.62x39 cases, once it became popular enough commercial ammunition started being manufactured, both in the USSR and in Finland.[4][5] When it was introduced to the United States by SAKO it was stamped .220 Russian. Lapua later changed the designation to .220 Russian for the American market as well.[6][5]
| 5.6Ã39mm | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | ||||||||||||||||
| Type | Hunting | |||||||||||||||
| Place of origin | Soviet Union | |||||||||||||||
| Production history | ||||||||||||||||
| Designed | 1961 | |||||||||||||||
| Manufacturer | SAKO & Lapua | |||||||||||||||
| Specifications | ||||||||||||||||
| Parent case | 7.62Ã39mm | |||||||||||||||
| Case type | Rimless, Bottle-Neck | |||||||||||||||
| Bullet diameter | .223 in (5.7 mm)[1][2] | |||||||||||||||
| Land diameter | .220 in (5.6 mm)[2] | |||||||||||||||
| Neck diameter | .248 in (6.3 mm) | |||||||||||||||
| Shoulder diameter | .402 in (10.2 mm) | |||||||||||||||
| Base diameter | .447 in (11.4 mm) | |||||||||||||||
| Rim diameter | .447 in (11.4 mm) | |||||||||||||||
| Rim thickness | .059 in (1.5 mm) | |||||||||||||||
| Case length | 1.524 in (38.7 mm) | |||||||||||||||
| Overall length | 1.917 in (48.7 mm) | |||||||||||||||
| Case capacity | 30.1 gr H2O (1.95 cm3) | |||||||||||||||
| Primer type | Small rifle | |||||||||||||||
| Maximum pressure | 51,000 psi (350 MPa) | |||||||||||||||
| Ballistic performance | ||||||||||||||||
| ||||||||||||||||
| Source: [1] | ||||||||||||||||
Soviet 5.6Ã39mm cartridges were loaded with smokeless powder VT (винÑовоÑнÑй пиÑокÑилиновÑй поÑÐ¾Ñ ÐТ), as well as Soviet 7.62Ã54mmR and 9Ã53mmR hunting cartridges.[7] It is the parent case for the .22 PPC, 6mm PPC, and the 6.5mm Grendel cartridges.[6]
Ballistics
From Wolf.[8]
Firearms
In the Soviet Union, several hunting rifles were designed for this cartridge; MBO-1 target rifle, bolt-action carbine Bars, self-loading carbines MTs-127 (ÐЦ-127) and MTs-128 (ÐЦ-128), combination guns IZh-15,[9] MTs-5-35[10] and MTs-105-01 (ÐЦ-105-01).[11]
The TKB-022PM5 bullpup assault rifle, AO-36 assault rifle ("ÐвÑÐ¾Ð¼Ð°Ñ ÐÐ-36"), IZh-94 "Sever", "Saiga-5.6" ("Сайга-5.6"), and "Saiga-5.6S" ("Сайга-5.6С") have been chambered in 5.6Ã39mm.[6]
