Flyer5 wrote: he would rather have criminal control .
What a novel idea, punish the punks....so hard to understand.
Flyer5 wrote: he would rather have criminal control .
acesover wrote:Someone top this one, I once lit a cigarette off the barrel of my M-60 machinegun, May 5, 1970, Cambodia.
A semi or fully automatic firearm is said to fire from an open bolt if, when ready to fire, the bolt and working parts are held to the rear. When the trigger is pulled the bolt goes forward, feeding a round from the magazine into the chamber and firing it. Like any other self-loading design without an external power supply, the action is cycled by the energy of the shot; this sends the bolt back to the rear, ejecting the empty cartridge case and preparing for the next shot.Devil5052 wrote:Another question: When a firearm is said to fire "from an open bolt", can someone explain exactly what that means & what are the benefits/drawbacks to firing from an open or closed bolt? (I think firing from a closed bolt keeps the weapon cleaner but makes it hotter, but not positve)
spc wrote:A semi or fully automatic firearm is said to fire from an open bolt if, when ready to fire, the bolt and working parts are held to the rear. When the trigger is pulled the bolt goes forward, feeding a round from the magazine into the chamber and firing it. Like any other self-loading design without an external power supply, the action is cycled by the energy of the shot; this sends the bolt back to the rear, ejecting the empty cartridge case and preparing for the next shot.Devil5052 wrote:Another question: When a firearm is said to fire "from an open bolt", can someone explain exactly what that means & what are the benefits/drawbacks to firing from an open or closed bolt? (I think firing from a closed bolt keeps the weapon cleaner but makes it hotter, but not positve)
Compared to a closed bolt design, open bolt weapons generally have fewer moving parts. The firing pin is usually part of the bolt, saving on manufacturing costs. In automatic weapons an open bolt helps eliminate the dangerous phenomenon known as "cook-off," wherein the firing chamber becomes so hot that rounds spontaneously fire without trigger input, often causing the weapon to fire uncontrollably until it jams or exhausts its ammunition. Accuracy can suffer somewhat in an open-bolt design, but this is generally less of a concern in automatic weapons.
Many movies and video games portray open-bolt weapons as needing to be charged after reloading. This is not generally true, however, as the operation of basic open bolt weapons sends the bolt carrier back into a cocked position via the excess gas from the spent round. The sole exception is if the trigger was held down after the last round has been fired, at which point the bolt will fly forward once more and stay there.![]()
http://en.wikipedia.org/wiki/Open_bolt
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