The KO-8,2 is a Soviet bolt-action hunting rifle based on 7.62mm M1891/30 military rifle.Виктор Рон. От винтовки Мосина к карабину Кочетова НК-8,2 // журнал «Оружие», № 5, 2021. стр.57-58

History

In the early 1930s, it was decided to develop a large-caliber hunting cartridge with an

expanding bullet Expanding bullets, also known colloquially as dumdum bullets, are projectiles designed to expand on impact. This causes the bullet to increase in diameter, to combat over-penetration and produce a larger wound, thus dealing more damage to a li ...

and a hunting rifle for this cartridge based on the design of well-known standard military rifle. In 1932,

Tula Arms Plant Imperial Tula Arms Plant (russian: Императорский Тульский оружейный завод, Imperatorskiy Tulsky Oruzheiny Zavod) is a Russian weapons manufacturer founded by Tsar Peter I of Russia in 1712 in Tula, Tula Oblast a ...

began

serial production Serial may refer to: Arts, entertainment, and media The presentation of works in sequential segments * Serial (literature), serialised literature in print * Serial (publishing), periodical publications and newspapers * Serial (radio and televisio ...

of the ''NK-8,2 mm hunting carbine'',История Тульского оружейного завода, 1712—1972. М., «Мысль», 1973. стр.475-476 which lasted until 1941. After the end of

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

, production continued, with the weapon being renamed ''KO-8,2''.М. Мардер, Д. Матвеев. Новые ружья для промысловой охоты // журнал «Охота и охотничье хозяйство», № 8, август 1961. стp.35-39И. Дерюшев. Охотничьи карабины "Ижмаша" // журнал «Охота и охотничье хозяйство», № 12, декабрь 1985. стр.16-17 After start of the serial production of new hunting rifles ( Bars,

Los LOS, or Los, or LoS may refer to: Science and technology * Length of stay, the duration of a single episode of hospitalisation * Level of service, a measure used by traffic engineers * Level of significance, a measure of statistical significance ...

and

Medved Medved (Russian: медведь) means ''bear'' in several Slavic languages, including Slovenian, Russian, Czech, Serbian and Slovak. It may refer to: * Medved (surname) * Medved (rural locality), several rural localities in Novgorod Oblast, Russ ...

), the production of KO-8,2 hunting carbines and 8.2×66mm cartridges for them was discontinued.А. Соколов. Старые модели. КО-8,2 // журнал «Охота и охотничье хозяйство», № 11, ноябрь 1991. стр.29

Design

The NK-8,2 (KO-8,2) hunting rifle is a standard M1891/30 military rifle without

bayonet A bayonet (from French ) is a knife, dagger, sword, or spike-shaped weapon designed to fit on the end of the muzzle of a rifle, musket or similar firearm, allowing it to be used as a spear-like weapon.Brayley, Martin, ''Bayonets: An Illustr ...

with a new 8.2mm

barrel A barrel or cask is a hollow cylindrical container with a bulging center, longer than it is wide. They are traditionally made of wooden staves and bound by wooden or metal hoops. The word vat is often used for large containers for liquids, ...

and new bolt. The NK-8,2 (KO-8,2) hunting rifle had a birch stock and fore-end. A small number of rifles were equipped with detachable folding

bipod A bipod is a V-shaped portable attachment that helps support and steady a device, usually a weapon such as a long gun or a mortar. The term comes from the Latin prefix ''bi-'' and Greek root ''pod'', meaning "two" and "foot" respectively. Bipod ...

Variants

* NK-8,2 (''НК-8,2'') - first model, pre-war production, made by Tula Arms Plant * KO-8,2 (''КО-8,2'') - first model, post-war production (renamed without changes in design) * KO-8,2M (''КО-8,2М'') - second model, since August 1961. It has new 500mm barrel with four right grooves (320mm twist rate), new wooden gunstock and detachable scope base for optical sight ТО-4 * KO-9 (''КО-9'') - third model (9mm version of KO-8,2M for

9×53mmR The 9×53mmR rifle cartridge was designed for hunting in the USSR. It is a 7.62×54mmR necked up to accommodate a larger bullet. History It was offered for export to other countries Since 1971 two bullet types are available: * Type A - SP for ...

ammunition). It had new 600mm barrel with

muzzle brake A muzzle brake or recoil compensator is a device connected to, or a feature integral to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted ...

, different wooden gunstock with

recoil pad A recoil pad is a piece of rubber, foam, leather, or other soft material usually attached to the buttstock of a rifle or shotgun. Recoil pads may also be worn around the shoulder with straps, placing the soft material between the buttstock and the ...

and detachable scope base for optical sight, one test prototype was built Also, in 2005, the

Vyatskiye Polyany Machine-Building Plant JSC Vyatskiye Polyany Molot Machine-Building Plant (russian: Вятско-Полянский машиностроительный завод) is a Russian company based in Vyatskiye Polyany. The plant manufactures rifles and shotguns under the M ...

announced that it would begin production of new VPO-103 (''ВПО-103'') hunting carbine (a surplus 7.62mm M1944 military carbine converted to fire

ammunition).

Users

* – was allowed as civilian hunting weapon * - at least several NK-8,2 rifles were sold to Mongolia as civilian hunting weapon

Museum exhibits

* ten rifles are in collection of Tula State Arms Museum in

Tula Kremlin Tula Kremlin (russian: Тульский кремль) is a fortress in Tula, in the central area of European part of Russia. Monument of the 16th century. There are 2 Cathedrals inside the Kremlin: *Assumption Cathedral (1762-1766) *Epiphany Cat ...

"''В начале 1930-х гг. Д. М. Кочетов разработал охотничий карабин НК-8,2. Основой для его создания послужила трехлинейная винтовка С. И. Мосина. Тульский музей оружия располагает десятью карабинами Кочетова, время изготовления которых относится к 1932 - 1940''"
Хроника ружейного производства // журнал «Охота и охотничье хозяйство», № 10, октябрь 1987. стр.20-21

References

{{Reflist

Sources

* А. Я. Зеленков. Универсальное охотничье ружье для промысловой охоты // Рационализация охотничьего промысла. Выпуск 4. М., Заготиздат, 1955. ("Библиотека промыслового охотника") * В. Н. Трофимов. Отечественные охотничьи ружья нарезные. М., ДАИРС, 2007. стр.106-109 Bolt-action rifles of the Soviet Union 9×53mmR firearms Tula Arms Plant products Izhevsk machine-building plant products Hunting rifles