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標題: 點死都要知點解! [打印本頁]

作者: MS 時間: 9-10-2009 18:43 標題: 點死都要知點解!

乜野子彈頭呢!......

.50BMG,.223(5.56mm).223 Hollow point

[ 本帖最後由 MS 於 10-10-2009 20:58 編輯 ]

作者: sam524 時間: 9-10-2009 19:09

.50bmg (廢吹)

作者: Sacred 時間: 10-10-2009 09:41

from left to right:
7.62x54R, .308, 7.62x39, .223

作者: M1616 時間: 10-10-2009 11:41

MS..想問問有些彈頭中間有一行齒, 但有些又沒有? 唔明

作者: Sacred 時間: 11-10-2009 02:58

引用:

原帖由 M1616 於 10-10-2009 11:41 發表
MS..想問問有些彈頭中間有一行齒, 但有些又沒有? 唔明

that is called cannelure

http://en.wiktionary.org/wiki/cannelure
cannelure
Noun (plural cannelures)
2. Ringlike groove in the jacket of a bullet which provides a means of securely crimping the cartridge case to the bullet; analogous to the crimping groove in artillery ammunition.

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