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bolt action |
Also found in: Wikipedia | 0.03 sec. |
bolt actionType of breech mechanism that was key to developing an effective repeating rifle. It combines the firing pin, a spring, and an extractor, all housed in or attached to the bolt. A projecting handle with a round knob moves the bolt back and forth. As the bolt is thrust forward, it pushes a cartridge into the chamber and cocks the piece. The trigger releases the spring-driven firing pin inside the bolt. After firing, the extractor on the head of the bolt removes the spent cartridge and ejects it. The bolt then moves a new cartridge from the magazine. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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There, poorly organized guerrillas defeated the ``trained, organized and heavily armed'' military of the Soviet Union, using little more than 1890s-vintage bolt-action rifles and a small number of shoulder-fired Stinger missiles provided by Ronald Reagan. During World War II, the Australians converted many bolt-action rifles into machine guns. |
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