+------------------+------------+---------+-----------+-------+ | | | | Powder | Range | | Nature. | Weight. | Length. | contained |at 45°.| | | | |in Chamber.| | | | | | [10] | | +------------------+------------+---------+-----------+-------+ | |ct. qr. lbs.| Ft. In. | lbs. oz. | Yds. | | Brass Sea S. |82 — 8 | 5 3 | 32 — | 4100 | | Iron |82 1 — | | 20 — | | | 13 --------------+------------+---------+-----------+-------+ | Brass Land. |25 — 10 | 3 7½ | 9 12 | 2100 | | Iron |36 2 12 | | 9 8 | | +------------------+------------+---------------------+-------+ | Brass Sea S. |33 — — | 4 8 | 12 8 | 3800 | | Iron |41 — — | | 10 — | | | 10 --------------+------------+---------+-----------+-------+ | Brass Land. |10 1 25 | 2 9 | 4 10 | 1900 | | Iron |16 — 6 | | 4 8 | | +------------------+------------+---------+-----------+-------+ | Brass Land. | 4 1 8 | 2 1¾ | 2 — | 1600 | | 8 Iron | 8 — 11 | | 2 4 | | +------------------+------------+---------+-----------+-------+ | 5½ Brass Land. | 1 — 20 | 1 4¼ | — 9 | 1200 | +------------------+------------+---------+-----------+-------+ | 4⅖ Brass Land. | — 3 11 | 1 1½ | — 4½ | 1000 | +------------------+------------+---------+-----------+-------+ [10] See the word _Chambers_, for Experiments on the best form. _French Mortars, in their own Weights and Measures._ +------------------+------------+---------+-----------+-------+ | | lbs. | | | | |12 Inches | 2060 | | 3 7 | 2400 | |10 for long Ranges| 2000 | | 7 4 | 2800 | |10 ” short ” | 1560 | | 4 — | 2200 | | 8 ” ” ” | 595 | | 1 4¾ | 1160 | |Stone Mortars.[11]| 1100 | | 2 8 | | |12 inch } | 2750 | | 12 — | 2700 | |10 ” } Gomers | 2000 | | 6 8 | 2800 | | 8 ” } | 600 | | 2 — | 1400 | +------------------+------------+---------+-----------+-------+ [11] Stone Mortars should not be fired at a greater distance than 250 yards. _Ranges with a 10 Inch Sea Mortar, at 21 Degrees, on a Horizontal Plane._