Exterior Dimensions, in Inches, for Shell-Boxes.
For XV-inch shell, 18 × 18 by 20 high.
For XI-inch shell, 12.75 × 12.75 by 14.5 high.
For X-inch shell, 11.65 × 11.65 by 13.9 high.
For IX-inch shell, 10.63 × 10.63 by 12.9 high.
For 8-inch shell, 10.20 × 10.10 by 12.2 high.
For 32-pounder shell, 8.60 × 8.50 by 10.2 high.
Areas occupied by one Tier of Shell-Boxes.
| XI-inch | X-inch | IX-inch | 8-inch | 32 Pounder. | |||||
| No. | Ft. In. | No. | Ft. In. | No. | Ft. In. | No. | Ft. In. | No. | Ft. In. |
| 72 52 | 15.5½ × 5.8½ 14.4 × 4.6½ | 75 56 | 15.2 × 5.3½ 14.2 × 4.1½ | 102 80 | 15.8¼ × 5.9¼ 14.9¼ × 4.9½ | 108 85 | 16 × 6 15 × 5 | 176 140 | 16 × 6 15 × 5 |
GUNPOWDER.
STOWAGE, PRESERVATION, HANDLING, AND CHARGES.
129. The Bureau having adopted a new system of granulating Navy powder, the different classes will in future be known and designated as Rifle, Cannon, and Musket.
Gunpowder intended for ordinary use in cannon is to have sufficient strength to give a 6-pounder shot the under-mentioned Initial Velocities, determinable by the gun-pendulum of the Ordnance Yard at Washington.
130. The size of the grains is determined by sieves, made by piercing round holes in thin plates of brass. These sieves are five in number, the holes being of the following diameters, viz.: