| 单词 | ratchet rifling |
| 释义 | > as lemmasratchet rifling ratchet rifling n. rare a form of rifling of a gun barrel in which the grooves have their edges machined more sharply on the side imparting rotation to the bullet. ΚΠ 1861 J. M. Brooke Jrnl. 8 Nov. in G. M. Brooke Ironclads & Big Guns of Confederacy (2002) ii. 47 Decided to take a gun of the Tredegar pattern 6ft. in length, weighing 11,000 lbs., ratchet rifling, 5 grooves. 1945 C. E. Balleisen Princ. Firearms ii. 16 This form requires that much of the bullet jacket be deformed sharply by the grooves. Hence, it is often suggested that so-called ratchet rifling be used,..in which only the driving side of the land is made sharp. < as lemmas |
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