Guns

Heavy ordnance--mortars and howitzers not included.

Breech-loading Guns. Guns in which the charge is inserted at the breech.

Built-up Guns. Parts formed separately and then united by welding the parts together, or by shrinking one part over another.

Hooped Guns. Same as Built-up Guns.

Muzzle-loading Guns. Guns in which the charge is inserted at the muzzle.

Rapid-Fire Navy Guns. Guns that can be discharged about 6 times per minute. The projectiles of these guns are 4, 5 and 6 inches respectively, weighing from 34 lbs. to 100 lbs.

Rifled Guns. Guns having spiral grooves cut in the surface of the bore.

Smooth-Bore Guns. Guns having a perfectly smooth-bore surface. (See Table of U. S. Naval Breech-loading Guns.)