Special Orders. See [Orders, Special].
Specific Gravity. See [Gravity].
Specification. The designation of particulars; particular mention; as, the specification of a charge against a military officer. A written statement containing a minute description or enumeration of particulars, as of charges against officers or soldiers.
Speen. A parish of England, in Berkshire, 2 miles from Newbury, in which the second battle of Newbury was fought, October 27, 1646.
Spencer Rifle. See [Small-arms], and [Magazine Guns].
Spend. This term is sometimes used in military matters to express the consumption of anything; as, to spend all your ammunition.
Spent Ball. A ball shot from a fire-arm, which reaches an object without having sufficient force to penetrate it.
Speyer, also Speier. The capital of Rhenish Bavaria (the former Palatinate), and one of the oldest towns in Germany, stands at the influx of the Speyerbach in the Rhine 23 miles north of Carlsruhe. During the Orleans Succession war—well called by the Germans the Mordbrenner Krieg—the whole Palatinate was savagely wasted, Speyer was taken by the French, its inhabitants driven out, and the city blown up with gunpowder and burned to the ground. Only the cathedral resisted the barbarous efforts to mine it. In 1794, it was wasted by the French under Custine, and has never recovered from these calamities.
Spherical Bullets. See [Projectile].
Spherical Case-Shot. A spherical case-shot consists of a thin shell of cast iron, containing a number of musket-balls, and a charge of powder sufficient to burst it; a fuze is fixed to it as in an ordinary shell, by which the charge is ignited and the shell burst at any particular instant. A spherical case-shot, when loaded ready for use, has about the same specific gravity as a solid shot, and therefore, when fixed with the service charge of powder, its range, and its velocity at any point in its range, is about equal to that of a solid shot of the same caliber. The spherical case mostly used for field service is the 12-pounder, and contains, when loaded, 90 bullets. Its bursting charge is 1 ounce of powder, and it weighs 11.75 pounds. Its rupture may be made to take place at any point in its flight, and it is therefore superior to grape or canister. The attrition of the balls with which it is loaded, formerly endangered the firing of the bursting charge. This is now obviated, in making one mass of the balls, by pouring in melted sulphur. It is also prevented by Capt. Boxer’s improved spherical case-shot, of which there are two forms. In one form the bursting charge of powder is contained in a cylindrical tin box, attached to a brass socket which receives the fuze, and which is screwed into the shell. In the other, the part of the shell containing the bursting charge is separated from that containing the bullets by a diaphragm of sheet-iron, cast into the shell (i.e., the shell is cast on to the diaphragm which is inserted into the core). The bullets are introduced into the shell by a second orifice, and are kept in their places by a composition afterwards poured in. The present 12-pounder spherical case-shot, fixed with a charge of 21⁄2 pounds of powder, is effective at 1500 yards. The proper position of the point of rupture varies from 50 to 130 yards in front of, and from 15 to 20 feet above, the object. The mean number of destructive pieces from a 12-pounder spherical case-shot, which may strike a target 9 feet high and 54 feet long, at a distance of 800 yards, is 30. The spherical case-shot from rifle-cannon is said to be effective at over 2000 yards. Spherical case should not be used at a less distance than 500 yards.