Medium Ranges with Brass Mortars,
at 45 Degrees. 1780.
| 13 Inch.[12] | 10 Inch. | 8 Inch. | ||||||
|---|---|---|---|---|---|---|---|---|
| Charge. | Range. | Charge. | Range. | Charge. | Range. | |||
| lbs. | oz. | Yards. | lbs. | oz. | Yards. | oz. | dr. | Yards. |
| 2 | 12 | 862 | 1 | 10 | 823 | 10 | 8 | 580 |
| 2 | 14 | 939 | 1 | 11 | 852 | 11 | — | 635 |
| 3 | — | 998 | 1 | 12 | 783 | 11 | 8 | 711 |
| 3 | 2 | 1003 | 1 | 13 | 758 | 12 | — | 708 |
| 3 | 4 | 1090 | 1 | 14 | 823 | 12 | 8 | 701 |
| 3 | 6 | 1139 | 1 | 15 | 888 | 13 | — | 777 |
| 3 | 8 | 1165 | 2 | — | 892 | 13 | 8 | 825 |
| 3 | 10 | 1209 | 2 | 1 | 940 | 14 | — | 870 |
| 3 | 12 | 1270 | 2 | 2 | 941 | 14 | 8 | 853 |
| 3 | 14 | 1322 | 2 | 3 | 1041 | 15 | — | 866 |
| 4 | — | 1309 | 2 | 4 | 1128 | 15 | 8 | 899 |
| 4 | 2 | 1331 | 2 | 5 | 1103 | 16 | — | 921 |
| 4 | 4 | 1391 | 2 | 6 | 1221 | 16 | 8 | 987 |
| 4 | 6 | 1363 | 2 | 7 | 1258 | 17 | — | 987 |
| 4 | 8 | 1324 | 2 | 8 | 1215 | 17 | 8 | 1062 |
Ranges with a 5½ inch Brass Mortar,
at 15 Degrees.
| Charge. | Flight. | First Graze. | Rolled to | |
|---|---|---|---|---|
| oz. | dr. | Sec. | Yards. | Yards. |
| 2 | 8 | 3 | 209 | 303 |
| 3 | — | 3½ | 256 | 330 |
| 3 | 8 | 4 | 375 | 443 |
| 4 | — | 4½ | 457 | 501 |
| 4 | 8 | 5 | 530 | 600 |
| 5 | — | 5½ | 561 | 627 |
| 5 | 8 | 6½ | 667 | 715 |
| 6 | — | 7 | 709 | 780 |
Medium Ranges with Land Service Iron Mortars,
at 10 Degrees Elevation.—Powder in Cartridges.
| 10 Inch. | 8 Inch. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Flight. | Charge. | First graze. | Extreme Range. | Flight. | Charge. | First graze. | Extreme Range. | ||
| Sec. | lbs. | oz. | Yards. | Yards. | Sec. | lbs. | oz. | Yards. | Yards. |
| 3 | — | 12 | 198 | 415 | 3 | — | 8 | 202 | 403 |
| 3 | 1 | — | 278 | 458 | 3 | — | 10 | 266 | 461 |
| 4 | 1 | 4 | 366 | 564 | 3¼ | — | 12 | 351 | 614 |
| 4½ | 1 | 8 | 451 | 685 | 4 | — | 14 | 413 | 630 |
| 4 | 1 | 12 | 432 | 686 | 4¾ | 1 | — | 468 | 754 |
| 4¾ | 2 | — | 559 | 938 | 5 | 1 | 2 | 562 | 811 |
| 5 | 2 | 4 | 602 | 798 | 6 | 1 | 4 | 664 | 950 |
| 4¾ | 2 | 8 | 597 | 976 | 6½ | 1 | 6 | 700 | 1028 |
| 5 | 2 | 12 | 664 | 1121 | 6½ | 1 | 8 | 768 | 1064 |
| 5¼ | 3 | — | 764 | 1169 | |||||
Medium Ranges with the above Mortars,
at 15 Degrees.
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