Napoleon Gun

In 1856 it was proposed to increase the power of the light, and diminish the weight of the heavy field artillery, by the introduction of a single piece of medium weight and caliber; such is the new field or Napoleon gun. It has no chamber, and should therefore be cla ed as a gun. Its exterior is characterized by the entire absence of molding and ornament, and in this respect may be at once distinguished from the old field-cannon. The first reinforce is cylindrical, and it has no second reinforce, as the exterior tapers uniformly with the chase from the extremity of the first reinforce. The size of the trunnions and the distance between the rimbases are the same as in the 24-pounder howitzer, in order that pieces may be transported on the same kind of carriage. The diameter of the bore is that of a 12-pounder, the length of bore is 16 calibers. The weight is 100 times the projectile, or 1200 pounds. The charge of powder is the same as for the heavy 12-pounders (pattern of 1840), or 2 1 ⁄ 2 pounds for solid and case-shot, and 2 pounds for canister-shot. It has, therefore, nearly as great range and accuracy as the heaviest gun of the old system, and, at the same time, the recoil and strain on the carriage are not too severe. The new gun and carriage weigh about 500 pounds more than the 6-pounder and carriage, still it has been found to po e sufficient mobility for the general purposes of light artillery. It is proposed to retain the 12-pounder howitzer in service, to be employed in cases where great celerity of movement is indispensable. The effect of this change is to simplify the matériel of field artillery, and to increase its ability to cope with the rifle-musket, principally by the use of larger and more powerful spherical case-shot. The principal objection to an increased caliber for light field-guns is the increased weight of the ammunition, and consequent reduction of the number of rounds that can be carried in the ammunition-chests.