Rifled muzzle loader
…Ragon de Bange increased ranges by reducing gas leakage from around the breech block. The largest rifled muzzle-loader carried on a warship was the 17.7-inch, 100-ton Elswick of the 1870s, four of which were installed in each of the Italian battleships Duilio and Enrico Dandolo (launched in 1872). The Royal Navy at the time…