Charges for Field Guns.
| lbs. | ||||||||
| 12 | Prs. | Medium | and | Heavy | for | Round | Shot | 4 |
| ” | ” | ” | ” | ” | ” | Case | ” | 3½ |
| 12 | Prs. | Light | ” | Round | ” | 3 | ||
| ” | ” | ” | ” | Case | ” | 3 | ||
| 6 | Prs. | Desaguliers | ” | Round | ” | 2¼ | ||
| ” | ” | ” | ” | Case | ” | 2 | ||
| 6 | Prs. | Medium | ” | Round | ” | 2 | ||
| ” | ” | ” | ” | Case | ” | |||
| 6 | Prs. | Light | ” | Round | ” | 1½ | ||
| ” | ” | ” | ” | Case | ” | 1¼ | ||
| 3 | Prs. | Heavy | ” | Round | ” | 1 | ||
| ” | ” | ” | ” | Case | ” | |||
| 3 | Prs. | Light | ” | Round | ” | 12 oz. | ||
The charge for battering guns is ⅓ the weight of the round shot, for round shot, and ¼ of it for case shot.
The charge for carronades is usually ¹/₁₂ the weight of the shot. The highest is ⅛, and the lowest ¹/₁₆.
By the experiments made at Woolwich in March 1801, it is recommended, that when cylinder powder is used on service, the charges of field ordnance with round shot, shall be reduced to the usual quantities for case shot. The same experiments recommend, that the thickness or length of the wood bottom be varied, in order to change the position of the shot, and thereby save the bore; and that the paper cap which is usually thrown away on service, shall be put over the shot before it is introduced into the piece.
For charges for small arms see the word [Cartridges].
Charges of French Guns in French Weights.
| lbs. | |||
| 24 Prs. | 8 | Siege | |
| 16 Prs. | 5½ | ||
| 12 Prs. | 4 | Field | ¼ less for Case Shot. |
| 8 Prs. | 2½ | ||
| 4 Prs. | 1½ |
CHEVAUX DE FRIZE.—The body or beam of a chevaux de frize is generally made 9 feet long, and 6 inches square, and weighs 41 lbs. The spears are 33 in number, weighing 2 lb. each, are 5 feet long, and 1¼ inches square. They are placed 9½ inches asunder.
COMPOSITION.—For the composition of [fuzes], [portfires], [tubes], [carcasses], see those words.