5926545 Musket ball for the .753 in calibre Pattern 1842 smoothbore musket, 1842 circa (lead) by British School, (19th century); National Army Museum, London; (add.info.: Although the new Minie Rifle made the Pattern 1842 musket obsolete, it was still used early in the Crimean War (1854-1856). This example ball is slightly smaller than the official calibre.); by National Army Museum .