of an explosive. Cannon includes guns, howitzers, and mortars. The term also includes that portion of an artillery weapon required to fire a projectile, the tube, breech mechanism, and firing mechanism of an artillery weapon. h. Gun. In artillery, the term "gun," generally means cannon above .30 caliber (length 30 times the boi'e), or relatievly long barrel, operating with a rel- atively low angle of fire and having a high muzzle velocity. c. Howitzer. Normally, a howitzer is a cannon with a medium length barrel between that of a mor- tar and a gun in length, operating with a relatively high angle of fire and having a medium muzzle velocity. (1. Service of the Piece. Service of the piece is the operation and maintenance of a weapon or other equipment by its crew. e. Piece. Throughout this manual the term "piece" is used to mean the 155-mm howitzer. Section.
DesignationFM 6-81
EditionMar 1962
StatusSuperseded
Pages251
FunctionFires
CollectionHistoric
Public domain (U.S. Government work)