A magazine is the section of the gun that stores and supplies the bullet to the chamber which is attached to a repeating firearm. When a gun holder fires a gun, the magazine operates by relocating the cartridges stored inside into a position where they may be loaded into the chamber to create impact. A detachable magazine is often referred to as a ‘clip' and are heavily regulated by gun control laws because it is an important piece of most repeating firearm.
Gun magazines are created in many shapes and sizes such as bolt action express rifles, that hold only a few rounds to machine guns that can hold hundreds of rounds. The guns that accept a wide variety of magazine usually use a box or drum magazine and some handguns can even feed from both magazines and belts. The most commonly used of magazine in modern firearms are the removable box type magazines.
This cartridge in this magazine is located in either the column in a staggered zig zag manner or with each bullet placed one above the other. When the firearm starts to fire, then the cartridges are shifted to the top of the magazine by another bullet forced by spring tension to either a side by side or a single feed position.
Certain gun magazines like single or multiple tubular magazine are used in most lever action rifles, and pump action shotguns whether round or flat nose. These magazines hold cartridges end to end inside of a spring loaded tube, running parallel to the barrel or in the butt-stock and is normally fixed to the firearm when being used.
The main problem with tubular magazines was that when the bullet tip makes impact with the primer of the cartridge ahead of it during recoil, it would often times catch fire which made it very unsafe to use so it was made obsolete within armed forces when the pointed ‘splitzer' bullets were introduced.
There are also cylindrical designed magazines like drum and rotary magazines which has a larger capacity than box magazines. Drum magazines are used primarily in light machines guns like the Heckler & Koch MG36, but these magazines are less reliable and complicated. In some drum magazines, the cylindrical chamber forces the loose rounds into an exit slot while the cartridge stays parallel to the axis of rotation.
When the magazine is filled, then a wound spring forces the partition against the rounds. A single staggered column is pushed by a follower through a curved path. From there the rounds enter the vertical riser either from a single or dual drums. Other types of magazines include, Pan and Helical. There are also special high capacity magazines that were made to hold way more cartridges that the normal capacity but such magazines are usually banned.
Magazine capacity is often limited by the design of the firearm, like for example internal, tubular, or rotary ones. Many pistols and rifle magazines are considered as "high capacity" by gun regulatory laws are really the factory standard magazines originally made for use with their respective firearms.
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