7.62×38mmR
7.62×38mmR | ||||||||||||
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Léon Nagant | ||||||||||||
Designed | 1895 | |||||||||||
Specifications | ||||||||||||
Case type | Rimmed | |||||||||||
Bullet diameter | 7.82 (.308) | |||||||||||
Neck diameter | 7.26 mm (0.286 in) | |||||||||||
Shoulder diameter | 8.38 mm (0.330 in) | |||||||||||
Base diameter | 8.94 mm (0.352 in) | |||||||||||
Rim diameter | 9.855 mm (0.3880 in) | |||||||||||
Case length | 38.86 mm (1.530 in) | |||||||||||
Overall length | 38.86 mm (1.530 in) | |||||||||||
Primer type | Berdan or boxer small pistol | |||||||||||
Ballistic performance | ||||||||||||
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Test barrel length: 114 mm (4.5 in) Source(s): [1][2][3] |
7.62×38mmR (also known as 7.62 mm Nagant and Cartridge, Type R) is an ammunition cartridge designed for use in the Russian Nagant M1895 revolver.
A small number of experimental submachine guns (e.g.,
Background
The projectile is seated below the mouth of the cartridge, with the cartridge crimp sitting just above the bullet. When fired in the Nagant revolver, the crimp expands into the forcing cone, completing the gas seal and ostensibly increasing muzzle velocity by approximately 23 m/s (75 ft/s).
Commercially manufactured and loaded 7.62×38R cartridges are no longer difficult to find.
Most commercially loaded ammunition for the Nagant, including Fiocchi and the CCCP (Soviet Union) are marked yellow box imports, are target ammunition, and do not have great stopping power. The low power of these rounds has given the Nagant a reputation as an underpowered sidearm. However, the original military ball cartridges fired bullets in the 6.5 g (100 grains) range at up to 330 m/s (1,100 ft/s), making them close to the .32-20 Winchester and .32 H&R Magnum in power. One advantage of the round, if proper brass can be found, is that it leaves the chambers totally clean, and there is no need to scrape lead and powder residue out.
Handloading
Many users of this caliber handload their own ammunition. The proper brass cases are also expensive and difficult to come by. Handloaders have had success using dies for the .32-20 Winchester and .30 Carbine to handload the rounds. 32-20 Winchester brass cases are inexpensive, readily available, and can be reformed and used safely in guns chambered for 7.62×38R, but the resulting cartridges are too short to achieve the gas seal. Cut down. 223 Remington brass reformed in 30 carbine dies can be utilized to load for the Nagant also. These will achieve the gas seal, but the case rims will be undersized.[citation needed]
Three other cartridges, the .32 S&W, .32 S&W Long, and .32 H&R Magnum, will also generally chamber and fire in the revolver, but will not achieve the gas seal. The case head of the .32 S&W/H&R is about the same size as the case diameter of the Nagant cartridge, so the case head will sometimes actually end up moving into the chamber, thus preventing an adequate primer strike. Due to the dimensional differences between these cartridges and the original 7.62×38mmR cartridge, this practice is done at the shooter's own risk. The .32 H&R Magnum in particular develops much higher pressures than the 7.62 Nagant or either of the .32 S&W cartridges, which are both late 19th century developments. The most common anomaly when firing these cartridges is the bulging cases.[7]
Producers
- Belgium
- Russian Empire
- Soviet Union[8]
- Second Polish Republic - From 1929 until 1939[9]
- ft·lbf)—comparable to a .32 ACPsemi-automatic.
- Serbia - Prvi Partizan, a Serbian company produces a 7.62×38R load similar to Fiocchi's, originally under the "HotShot" brand but now under the standard Prvi Partizan label.[10]
See also
References
- ^ Schreier, Philip (July 18, 2022). "The Model 1895 Nagant Revolver". Shooting Illustrated: An Official Journal Of The NRA.
- ^ Campbell, Dave (August 9, 2020). "The 1895 Nagant Revolver: A Look Back". American Rifleman.
- ^ Herbert, Terril (June 6, 2017). "GUN REVIEW: RUSSIAN M1895 NAGANT REVOLVER IN 7.62X38R". Guns.com.
- ISBN 978-1847972934.
- ISBN 951-97184-1-9.
- ISBN 0-8117-2247-3.
- ^ "Nagant 1895". Archived from the original on 2007-09-30. Retrieved 2007-05-28.
- ^ 7,62-мм револьверные патроны "Наган" // А. И. Благовестов. То, из чего стреляют в СНГ: Справочник стрелкового оружия. / под общ. ред. А. Е. Тараса. Минск, «Харвест», 2000. стр.524-525
- ^ Александр Борцов. Патроны Польши // журнал "Мастер-ружьё", № 9 (114) 2006. стр.70-73
- ^ BPrvi Partizan 7,62 mm Nagant