A stripper clip (also known as a charger or charger clip, especially in British and in Commonwealth military vocabulary) is a speedloader that holds several cartridges (usually consisting between 5 and 10 rounds) together in a single unit for easier and faster loading of a firearm's magazine.
A stripper clip (also sometimes referred to as a charger clip) is used only for loading the magazine and is not necessary for the firearm to function, unlike an en bloc clip, which requires the clip with its ammunition to be inserted into the weapon to function. Generally, a weapon that can use a stripper clip for loading can also be loaded one round at a time, while a weapon designed for an en bloc clip cannot be used without the clip. It is called a 'stripper' clip because, after the bolt is opened and the stripper clip is placed in position (generally by placing it in a slot on either the receiver or bolt), the user presses on the cartridges from above, sliding them down and off the clip, thereby 'stripping' them off the stripper clip and into the magazine. After the magazine is loaded, the stripper clip is removed and set aside for reloading, or simply discarded during combat.
Depending on the firearm, magazine, and cartridge, stripper clips come in a variety of shapes, some quite complex, though most are either straight or crescent-shaped pieces of stamped metal—usually brass, steel (often blued or parkerized), or plastic.
Stripper clips were originally employed in infantry bolt-action rifles, such as the Russian Mosin–Nagant, the British Lee–Enfield, and the German Gewehr 98 and its variant the Mauser K98k, the related US Springfield M1903 and many others. Stripper clips were also employed in newer, semi-automatic rifles with internal box magazines, such as the Soviet SKS and Egyptian Hakim Rifle. Many early semi-automatic pistols also used stripper clips to reload, including the Mannlicher M1894, the Roth-Steyr M1907, the Mauser C96. Currently they are used to top-off detachable box magazines for semi-automatic and automatic rifles. A magazine loader is placed on the lip of the box magazine, the clip is placed inside the loader, and then the rounds are pushed into the magazine.
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Stripper/charger clips have been used since 1889, while en bloc clips have been used since roughly the mid-late 1880s. En bloc clips, as used in the M1 Rifle (M1 Garand) as well as the Italian Mannlicher-Carcano are designed to be inserted into the magazine itself, essentially a part of the magazine, while stripper clips are intended to load ammo into the magazine while the magazine is intended to load ammo into the chamber. The M1891 Three Line Rifle (aka the first "Mosin Nagant") utilized stripper clips, however the design was improved upon later, namely by Mauser. Mauser clips are inherently smoother and eject automatically upon closing the bolt, while Mosin clips require a special technique to get anywhere near the same efficiency but must be manually removed before you can close the bolt, making it inherently slower. Still, it is faster than reloading with single cartridges. Moreover, once some but not all rounds have been fired Mauser clip format guns are as a rule difficult or impossible to top-up to their maximum capacity again with additional cartridges, which is generally easy with stripper-clip loading weapons.
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