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ms連忙打電話問女兒.......佢話lee支槍係
The gas sealed cylinder, mentioned above, was made to use all of powder gases to propel the bullet (in most revolvers some gases escape from the gap between the cylinder face and barrel breech). To achieve that, the cylinder moves ahead a bit when hammer is cocked, enclosing a barrel breech area with recess in the front of each chamber. The cartridge, unique to that design, had long case with tapered mouth and a bullet totally enclosed inside the case. When cylinder moves forward, the cartridge case mouth entered the barrel breech and was used as additional seal. This was a complicated mechanism, useful mostly when guns were used with silencer.
[ 本帖最後由 MS 於 23-4-2009 00:38 編輯 ]
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