----------------------------+------------------------------- NAME, NATURE, AND | REMARKS. CLASSIFICATION. | ----------------------------+------------------------------- 17-inch, 100-ton | ----------------------------+------------------------------- Muzzle-loading, built-up Guns. Woolwich pattern. Armor piercing. 16-inch, 80-ton | 12.5-in., 38-ton | 12-inch, 35-ton | 12-inch, 25-ton | Woolwich 11 inch, 25-ton | groove. 10-inch, 18-ton | Increasing 9-inch, 12-ton | twist. 8-inch, 9-ton | +------------------------------- 7-inch, 90-cwt. | Woolwich groove. 7-inch, 6½-ton | Uniform twist +------------------------------- 64-pdr., 64-cwt shell | Shunt groove. Uniform twist. ----------------------------+------------------------------- Boat. 9-pdr., 8-cwt. | Modern French groove. 9-pdr., 6-cwt. | Uniform twist. +------------------------------- 7-pdr., 200-lb., steel |French groove. Uniform twist. 64-pdr., 71-cwt., converted |Plain groove. Uniform twist. ----------------------------+------------------------------- Breech-loaders. Armstrong pattern. Steel. 7-inch, 82-cwt. +------------------------------- 40-pdr., 32-cwt. | 40-pdr., 35-cwt. | 20-pdr., 15-cwt. | Armstrong 20-pdr., 13-cwt. | multigroove. Boat. | Uniform 9-pdr., 6-cwt. | twist. 6-pdr., 3-cwt. | 12-pdr., 8-cwt. | ----------------------------+------------------------------- GUNS. The old cast and wrought iron smooth-bore guns are now obsolete, and only found in service at dock-yards for saluting and experiment, and forming the broadside batteries of some of the training ships. The rifled ordnance consists of the Woolwich muzzle-loader, the Palliser converted muzzle-loader, the Armstrong breech-loader, and the Gatling machine-gun. [Illustration: 7-inch Mark III.] The Woolwich type is subdivided into marks or patterns of each calibre corresponding to the gradual improvements in manufacture. Mark I. is in most cases the original Armstrong pattern, in which the jacket is composed of a large number of small coils or bands. In the other marks the number of the coils is decreased, whilst each one is increased in size. [Illustration: 10-inch Mark I.] The Palliser converted type is confined to the 64-pdr. calibre.