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Another underlying cause of the M16's jamming problem was identified by ordnance staff that discovered that Stoner and ammunition manufacturers had initially tested the AR-15 using DuPont IMR8208M extruded (stick) powder. Later ammunition manufacturers adopted the more readily available Olin Mathieson WC846 ball powder.
Failure to feed (FTF) is when a firearm fails to feed the next round into the firing chamber. Failure to feed is common when the shooter does not hold the firearm firmly (known as limp wristing), when the slide is not fully cycled by the preceding round, or due to problems with the magazine. It can also be caused by worn recoil springs, buffer ...
The infamous reliability problems were due to production errors and an arbitrary decision by military brass to use a cartridge that the rifle had not been designed to fire (the M16 was originally designed to fire 7.62x51 mm NATO ammo as the AR 10; only after being redesigned for 5.56 NATO did problems surface). Chronic jamming problems with the ...
This is not an issue for break-action single shot firearms, since there is no cycling action to jam, although it could potentially cause accuracy (but not jamming) problems in double barreled rifles, double barreled shotguns, or combination guns, provided they have more than one rifle barrel. Some combination guns, such as "drillings" or ...
The original AR15 and M16 designs lacked the "bolt forward assist" feature found on the later M16A1. [2] When hit, it pushes the bolt carrier forward, ensuring that the bolt is locked. In order to ensure that the extractor is clipped around the rim of the casing, the forward assist is usually struck rather than pushed.
Estonia has accused neighbouring Russia of jamming GPS navigation devices in airspace above the Baltic states, echoing concerns from airlines that say they have been contending with such ...
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One common result of limp wristing is a failure to eject, as the slide will be moving too slowly at the point where the ejector is activated. The slow-moving case will be caught as the slide closes, resulting in a "stovepipe" jam. These jams can be easily dealt with by knocking the used brass out of the way with the side of the hand or closed fist.