Right image: Hexagonal rifling of Le Pétulant . (en)
Left image: The La Hitte muzzle-loading rifle system was introduced in 1858. Rifled mountain cannon "Canon de montagne de 4 modèle 1859 Le Pétulant". Caliber: 86 mm. Length: 0.82 m. Weight: 101 kg . Ammunition: 4 kg shell. (en)
Left image: Jean Lepage silex carbine said "du Premier Consul", circa 1800. (en)
Right image: Shell used in Japan during the Boshin War. (en)
Left image: The La Hitte system was based around a shell equipped with lugs which allowed it to follow the rifle grooves inside the cannon bore. (en)