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The "R" stands for rimmed. The 7.62×54mmR rifle round is a Russian design dating back to 1891. Originally designed for the Mosin-Nagant rifle, it was used during the late Tsarist era and throughout the Soviet period, in machine guns and rifles such as the SVT-40.
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves ("rifling") cut into the barrel walls.The raised areas of the rifling are called "lands," which make contact with the projectile (for small arms usage, called a bullet), imparting spin around an axis corresponding to the orientation of the weapon.
The term was originally rifled gun, with the verb rifle referring to the early modern machining process of creating grooves with cutting tools. By the 20th century, the weapon had become so common that the modern noun rifle is now often used for any log-shaped handheld ranged weapon designed for well-aimed discharge activated by a trigger .
The anatomy of a gunstock on a Ruger 10/22 semi-automatic rifle with Fajen thumbhole silhouette stock. 1) butt, 2) forend, 3) comb, 4) heel, 5) toe, 6) grip, 7) thumbhole A gunstock or often simply stock, the back portion of which is also known as a shoulder stock, a buttstock, or simply a butt, is a part of a long gun that provides structural support, to which the barrel, action, and firing ...
Safety (firearms) Scope mount; Sear (firearm) Self-loading rifle; Shooting sticks (weapon mount) Sight (device) Sleeve gun; Slide stop; Sling (firearms) Slow match; Slug barrel; Sporterising; Squeeze bore; Stock (firearms) Stripper clip; Synchronization gear
Caliber/calibre: In small arms, the internal diameter of a firearm's barrel or a cartridge's bullet, usually expressed in millimeters or hundredths of an inch; in measuring rifled barrels this may be measured across the lands (.303 British) or grooves (.308 Winchester) or; a specific cartridge for which a firearm is chambered, such as .45 ACP or .357 Magnum.
The M16 rifle and the AK-47, two common firearms with significant influences on firearm design. A firearm is any type of gun that uses an explosive charge and is designed to be readily carried and operated by an individual. [1] [2] [3] The term is legally defined further in different countries (see legal definitions).
A turn bolt refers to a firearm component where the whole bolt without using a bolt carrier turns to lock/unlock. This is mostly used to describe manually operated bolt action firearms, but also on some automatic firearms. The most common locking mechanism on rifles is a rotating bolt, which can be classified as a rigid type of bolt lock. Semi ...