1911 Encyclopædia Britannica, Volume 5… (1911)
“ The principal details of the chassepot are:—weight of rifle, 9 ℔ 5 oz.; length with bayonet, 6 ft. 2 in.; calibre, .433 in.; weight of bullet (lead) , 386 grains; weight of charge (black powder) , 86.4 grains; muzzle velocity, 1328 f.s.; sighted to 1312 yds. (1200 m.) . The chassepot was replaced in 1874 by the Gras rifle, which had a metal cartridge, and all rifles of the older model remaining in store were converted to take the same ammunition (fusil modèle 1866/74) . ”
