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Henri-Gustave Delvigne
Henri-Gustave Delvigne (April 10, 1800 in Hamburg – October 18, 1876 in Toulon) was a French soldier and inventor. He became a captain in the French infantry service, from which he resigned on the outbreak of the 1830 July Revolution. Delvigne revolutionized rifle technology and rendered it proper as a weapon.
==Chambered magazines==
In 1826 Delvigne invented a new method which greatly simplified the use of rifled guns, and created a rifle known by his name. In this rifle the chamber was smaller than the bore, with which it was connected by a spherical surface equal in radius to the ball used. The powder was poured from the muzzle into the chamber, upon which the ball rested when dropped into the bore. When forced against the chamber rim by ramming (with three strokes of a heavy ram), the bullet would become deformed and flatten, so as to expand in diameter against the inside of the bore, allowing the bullet to press against the rifling grooves. When fired, the bullet would accompany the rifling and spin.〔(''The Artillerist's Manual'' by John Gibbon p.125 )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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