Carl, I was under the impression that the 7 inch James was used.
John
Quote from #8 Report of Engineers":
"55. On the 21st of February, the first vessel with ordnance and ordnance stores for the siege, arrived in Tybee Roads. From that time until the 9th of April, all the troops on Tybee Island, consisting of the seventh regiment Connecticut Volunteers, the forty-sixth regiment New York Volunteers, two companies of the Volunteer Engineers, and, for the most of the time, two companies third Rhode Island Volunteer Artillery, were constantly engaged in landing and transporting ordnance, ordnance stores, and battery materials, making fascines and roads, constructing gun and mortar batteries, service and déptôt magazines, splinter and bomb-proof shelters for the reliefs of cannoniers off duty, and drilling at the several pieces:
56. The armament comprised thirty-six pieces, distributed
24 GEN. GILLMORE'S REPORT.
in eleven batteries, at various distances from the fort, as shown in the following table:
1. Battery, Stanton, 3 heavy 13-inch Mortars, at 3,400 yds.
2. Battery, Grant, 3 heavy 13-inch Mortars, " 3,200 "
3. Battery, Lyon, 3 heavy 10-inch Columbiads, " 3,100 "
4. Battery, Lincoln, 3 heavy 8-inch Columbiads, " 3,045 "
5. Battery, Burnside, 1 heavy 13-inch Mortar, " 2,750 "
6. Battery, Sherman, 3 heavy 13-inch Mortar, " 2,650 "
7. Battery, Halleck, 2 heavy 13-inch Mortar, " 2,400 "
8. Battery, Scott, 3 10-inch Columbiads, " 1,740 "
Scott, 1 8-inch Columbiads, " 1,740 "
9. Battery, Sigel, 5 30-p'dr. Parrott, " 1,670 "
Sigel, 1 48-p'dr. James, (old 24 p'dr.) " 1,670 "
10. Battery, McClellan, 2 84-p'dr. James, (old 42 p'dr.) " 1,650 "
McClellan, 2 64-p'dr. James, (old 32 p'dr.) " 1,650 "
11. Battery, Totten, 4 10-inch Siege Mortars, " 1,650 "
57. Each battery had a service magazine capable of containing a supply of powder for about two days' firing. A depot powder magazine, of 3,600 barrels capacity, was constructed near the Martello Tower, which was the landing-place for all the supplies.
58. For a description of the manner of unloading the heavy ordnance upon an exposed beach,—remarkable for its heavy surf,—and of the means adopted for transporting it, by the labor of men exclusively, over a swampy and unsafe road, to the several batteries, located at points varying from one mile to two and a half miles from the landing-place, I refer you to the report of Lieutenant Horace Porter, chief of ordnance and artillery, hereunto appended."