Sabot

Is a thick, circular disk of wood, to which, in fixed ammunition, the cartridge-bag and projectile are attached. For a spherical projectile, the sabot has a spherical cavity, and circular groove to which the cartridge-bag is tied; in the canister-sabot, the spherical cavity is omitted, and a circular offset is added. The effects of a sabot are: (1) To prevent the formation of a lodgment in the bore. (2) To moderate the action of the powder on the projectile; and, (3) To prevent the projectile from moving from its place. In consequence of the scattering of the fragments, it is dangerous to use the sabot in firing over the heads of one’s own men. The term is also applied to the soft metal device attached to the base of rifled projectiles to take the grooves of the bore.