Fig. 28.—SMITH & WESSON AUTOMATIC POCKET PISTOL
Eight shots; 3½ inch barrel; weight, 1 lb., 7¾ oz.; .35 cal.

The accuracy of the cartridge depends largely upon the uniformity exercised in the operations of loading, the fit of the bullet, its shape, and the reliability and uniformity of the powder. The primer must be of uniform strength also, especially in reduced charges. In ammunition for military service the shells are crimped on the bullets to hold them in place. This does not increase the accuracy in black powder ammunition, but it is necessary and advantageous in all smokeless ammunition including gallery charges, in order to confine the powder and produce uniform results.

The following is a digest of the principal pistol and revolver cartridges in use at the present time.

Rim-fire Cartridges.—These are primed with a fulminate of mercury mixture around the outer edge of the rim, or base of the shell, and are generally loaded with Lesmok, semi-smokeless, or black powder.

Figure 29.

The smallest and lightest charged ammunition in general use is the .22 caliber. In this caliber the “C. B.” or Conical Ball Cap loaded with black powder is the smallest practicable cartridge. The charge is 1½ grains of powder and a lubricated conical bullet weighing 29 grains.