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The below table gives a list of firearms that can fire the 7.62×39mm cartridge, first developed and used by the Soviet Union in the late 1940s. [1] The cartridge is widely used due to the worldwide proliferation of Russian SKS and AK-47 pattern rifles, as well as RPD and RPK light machine guns.
The 7.62×39mm (also called 7.62 Soviet, formerly .30 Russian Short) [5] round is a rimless bottlenecked intermediate cartridge of Soviet origin. The cartridge is widely used due to the global proliferation of the AK-47 rifle and related Kalashnikov-pattern rifles , the SKS semi-automatic rifle, and the RPD / RPK light machine guns.
The 6.5 Grendel bullets have a true diameter of 6.71mm / 0.264" and the 6.5 Grendel case can be formed from abundant 7.62x39 cases with a neck re-sizing die, and fire-forming a slight change to the shoulder, if the case is made from brass. Many of the popular 7.62x39 cases are made from steel, which will not work for reforming the shoulder.
A new barrel is the minimum required component to convert a standard AR-15 to .277 Wolverine. In order to load heavier (therefore longer) bullets to magazine length without the problems of seating the bullet's ogive into the case mouth, the Wolverine case is shortened to approximately 39 mm from its 45 mm parent brass.
The 7.62 mm designation refers to the internal diameter of the barrel at the lands (the raised helical ridges in rifled gun barrels). The actual bullet caliber is often 7.82 mm (0.308 in), although Soviet weapons commonly use a 7.91 mm (0.311 in) bullet, as do older British ( .303 British ) and Japanese ( 7.7×58mm Arisaka ) cartridges.
Improvements were made to the initial design from the 1970s which made the rifle capable of handling more powerful cartridges such as the .308 Winchester/7.62×51mm and the more prevalent .223 Remington/5.56×45mm, 5.45×39mm, and 7.62×39mm calibers. These improvements contributed to the modern line of the Saiga rifles being adopted by many ...
The 7.62 Soviet's cartridge taper prevented reliable feeding in AR magazines and created wear on the bolt. From the 14.5 in (370 mm) barrel of the M4 carbine , the M855 5.56×45mm round has an effective point target range of 500 meters.
Micro Upper Receivers – 13.25" long and designed to support barrel lengths from 7.5" to 18.6". Primarily intended for barrel lengths from 7.5" to 8". Variants are also available in "California" versions which are limited to meet the more restrictive State of California firearms laws. Robinson Armament also produced an 18.6" barrel version for ...