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File:Enfield bullet with iron cup.jpg

Enfield_bullet_with_iron_cup.jpg ‎(180 × 311 pixels, file size: 22 KB, MIME type: image/jpeg)

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日本語: プリチェット弾が、基準の直径より小さく製造された事で、発砲時に拡張しても銃身に吻合せず、精度低下、射程低下、威力低下、ファウリングなどの問題を起こした際に、そのような基準の直径より小さい直径で製造された弾丸に起こる不十分な拡張、吻合を防ぐために、プリチェット弾を鉄製カップの圧入によって拡張するミニエー弾へと改造する事をヘイ大佐によって提案され、1855年の5月に採用された弾丸です。鉄製カップを挿入するために空洞はプリチェット弾より深く、そして大きくなりました。鉄製カップは、初期は不完全形状型の鉄製カップ、後に指貫型の鉄製カップへと変更されました。画像は、1860年に出版された本からの引用であり、パブリックドメインとなります。
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Source Rifles and volunteer rifle corps, their constitution, arms, drill laws and uniform
Author Llewellynn Frederick W. Jewitt

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This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
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current11:54, 26 July 2021Thumbnail for version as of 11:54, 26 July 2021180 × 311 (22 KB)上野ネズミ (talk | contribs)Uploaded a work by Llewellynn Frederick W. Jewitt from Rifles and volunteer rifle corps, their constitution, arms, drill laws and uniform with UploadWizard

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