The first Norwegian breech-loader was the 18 bore (.69 cal.) Chamber-loading Rifle (Kammerladningsgever), adopted in 1842. The Model 1842 was succeeded by several models, each with more or less minor changescompared to the original model. The most extensive change was made in 1860 when the calibre was reduced to 11.77mm (.46 cal.). The breech-block, containing the chamber, was pivoted at the rear; a side lever, mounted on an eccentric cam, opened the action and provided an effectual breech-seal when the action was shut. An under-hammer cap lock originally lay ahead of the trigger guard. After the Norwegian army had adopted the Remington Rolling Block, in 1867, many old chamber-loaders were altered to fire the same rim fire cartridge. Conversions were known as Landmark’s and Lund’s. The Navy adopted the Landmark, which was slower to load compared to the Lund’s that the Army adopted. The new calibre was 12,17mm (.48 cal.) and the cartridge was named 12,17x44R. It was built on the US 50-70 cartridge, but it is not quite as powerful.
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