| Dimensions. | 10-inch, or 130-pounder. | 64-pdr. Gun of 106 cwt. 8-in. Rifle. | 100-pounder Rifle, 32-pounder Gun, and 8-inch Shell-Guns, having Chambers Of 32-pounder Calibre. | |||||||||||||
| Charges | lbs. | 30 | 18 | 15 | 16 | 12 | 8 | 10 | 9 | 8 | 7 | 6 | 5 | 4.5 | 4 | 3 |
| Width of rectangle (length of bag cut), including tie and four-tenths of an inch for seam. | in. | 20 | 15.2 | 14 | 18.7 | 15.7 | 12.7 | 16.6 | 14.6 | 18.0 | 12.6 | 11.6 | 10.6 | 10.1 | 9.6 | 8.6 |
| Inches. | Inches. | Inches. | ||||||||||||||
| Length of rectangle (cylinder developed), including eight-tenths of an inch for seam. | 29.01 | 23.80 | 18.10 | |||||||||||||
| Radius of circular pattern of bottom, including four-tenths of an inch for seam. | 4.9 | 3.60 | 2.95 | |||||||||||||
| Diameters of cylindrical formers for inspection of cartridge-bags. | 9.00 | 7.00 | 5.50 | |||||||||||||
| Additional length for one pound of powder. | 0.40 | 0.80 | 1.22 | |||||||||||||
Details of Cartridge-Bags.
SHELL-GUNS WITH CONICAL CHAMBERS.
| Calibre of Gun. | XV-in. | XI-in. | X-in. | IX-in. | 8-in. of 6500. | 32-pr. of 4500. | ||||||
| Charge of powder | lbs. | 35. | 50. | 60. | 20. | 15. | 15. | 12.5 | 13. | 10. | 7. | 6. |
| Diameter of cartridge. | ||||||||||||
| large end | 13.5 | 13.5 | 13.5 | 9.85 | 9.85 | 9. | 9. | 8.13 | 8.13 | 7.25 | 6. | |
| small end | — | — | — | 5.50 | 5.50 | 5. | 5. | 4.50 | 4.50 | 4. | 8.5 | |
| Width of stuff required to cut bag. | in. | 24. | 28. | 30. | 22. | 20. | 20. | 20. | 18. | 18. | 24. | 22. |
| Whole length of bag cut, including tie and seam. | in. | 21.5 | 25.5 | 27.5 | 10. | 17.5 | 18.5 | 17.75 | 16.5 | 15.5 | 12.0 | 11.0 |
| Length of filled cartridge. | in. | 12. | 15.5 | 18. | 12. | 10.5 | 10. | 9. | 11.5 | 10.5 | 7.5 | 9.5 |
| Length of filled cartridge. | in. | 12. | 15.5 | 18. | 12. | 10.5 | 10. | 9. | 11.5 | 10.5 | 7.5 | 9.5 |
| Additional length for one pound of powder. | in. | |||||||||||
| Quantity of stuff required to cut one hundred bags. | yds. | 122. | 122. | 122. | 92. | 92. | 86. | 86. | 78. | 78. | 30. | 30. |
In cutting, the length of the rectangle should be taken in the direction of the length of the stuff, as it does not stretch in that direction, and the material should be chosen, as nearly as possible, of the width required for the length of the bags, to save waste in cutting.
The bags are to be sewed with worsted yarn, with not less than eight stitches to an inch; they must be stitched within four-tenths of an inch of each edge, and the two edges of the seam felled down upon the same side, to prevent the powder from sifting through. The edges of the bottom are felled down upon the sides.
The bags, when filled, must be tied with woollen thrums.
185. Cartridge-Bags for Saluting Charges.—Old cartridge-bags which have been condemned for service charges are to be repaired and used for saluting charges; and whenever it is necessary to make bags expressly for the purpose, or for immediate use, they may be formed by sewing together two rectangular pieces with semicircular ends.
186. Inspection.—The material especially procured for cartridge-bags is to be carefully inspected to detect any mixture of cotton with the wool, by burning a few bits taken at hazard from each piece; or, by dissolving it in a solution of 1 ounce of caustic potassa in a pint of water—the cloth to be put in when the water is boiling, which is to continue until dissolution takes place. The texture of the stuff is also to be examined and its strength tried, such standard for the latter being established as may be found sufficient to insure perfect efficiency.