Search results
Results From The WOW.Com Content Network
In breechloading firearms, primary extraction is the initial phase (the first few millimeters) of the extraction of a spent casing from the firearm chamber. [1] After the primary extraction comes the secondary extraction where the bolt is moved further backwards, [2] and the extraction is then normally finished with the spent cartridge being ...
The main disadvantage with a push feed system is the possibility for a double feed malfunction if the bolt is not fully closed when chambering a round, followed with pulling the bolt back to strip another round from the magazine, resulting in one chambered and one partially chambered round. A double feed in itself is somewhat uncommon as an ...
The series of books has often been criticised for not including dimensioned drawings of cartridges and for placing some cartridges into unusual categories. (For example, the 11th edition of the book places the .303 British round inside the section of American Military Cartridges.) [15]
Not all single-shot firearms have extractors, though many do. Break-action shotguns, double rifles, and combination guns typically have an extractor that pushes out the casings when the action is flexed open. Most modern extractors are forceful enough to completely eject the casing from the gun (i.e. integrating the function of an ejector), but ...
Half-cock: The position of the hammer where the hammer is partially but not completely cocked. Many firearms, particularly older firearms, had a notch cut into the hammer allowing half-cock, as this position would neither allow the gun to fire nor permit the hammer-mounted firing pin to rest on a live percussion cap or cartridge. The purpose of ...
A light primer strike will result in a dead trigger and the gun will not cycle. This malfunction is not to be mistaken with a squib load which the gunpowder is ignited and the bullet fires, but is trapped in the barrel of a gun. A light primer strike will not have expanding gases as a squib load would produce as sign that there is one.
Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.
Since technology and doctrine have changed over time, not all of them are in current use, or they may have been superseded by more modern terms. However, they are still in current use in articles about previous military periods. Some of them like camouflet have been adapted to describe modern versions of old techniques.