Canon obusier de 12
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The Canon obusier de 12, also known as the "Canon de l’Empereur", was a type of canon-obusier developed by France in 1853. Its performance and versatility allowed it to replace all the previous field guns, especially the Canon de 8 and the Canon... Wikipedia
Caliber: 121 mm (4.62 in)
Effective firing range: 1,480 m at 5° elevation (1,440 yd)
Muzzle velocity: 439 m/s (1,440 ft/s)
Shell: 4.1 kg shell, ball, canister