The bombardier, and pocket gunner

by Ralph Willett Adye

Nature.			Weight.			Length.		Powder contained in Chamber.[10]		Range at 45°.
			ct.	qr.	lbs.	Ft.	In.	lbs.	oz.	Yds.
13	Brass	Sea S.	82	—	8	5	3	32	—	4100
	Iron		82	1	—			20	—
	Brass	Land	25	—	10	3	7½	3	12	2100
	Iron		36	2	12			9	8
10	Brass	Sea S.	33	—	—	4	8	12	8	3800
	Iron		41	—	—			10	—
	Brass	Land	10	1	25	2	9	4	10	1900
	Iron		16	—	6			4	8
8	Brass	Land.	4	4	8	2	1¾	2	—	1600
	Iron		8	—	11			2	4
5½	Brass	Land.	1	—	20	1	4¼	—	9	1200
4⅖	Brass	Land.	—	3	11	1	1½	—	4½	1000

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		Gomers	2750					12	—	2700
10	”			2000					6	8	2800
8	”			600					2	—	1400

Ranges with a 10 Inch Sea Mortar, at
21 Degrees, on a Horizontal Plane.

Weight of Mortar.			Weight of Shell.		Charge.		Elevation.	Flight.	Range.
ct.	qrs.	lbs.	lbs.	oz.	lbs.	oz.	Deg.	Sec.	Yards.
34	2	14	86	—	5	8	21	14¾	2335
			87	—				16	2510

Ranges with Sea Service, Iron Mortars, at 45 Degrees,
upon a Horizontal Plane. 1798

13 Inch.				10 Inch.
Charge.		Flight.	Range.	Charge.		Flight.	Range.
lbs.	oz.	Sec.	Yards.	lbs.	oz.	Sec.	Yards.
2	—	13	690	1	—	13	680
4	—	18	1400	2	—	18	1340
6	—	21	1900	3	—	21	1900
8	—	24½	2575	4	—	24	2500
10	—	26½	2975	5	—	26	2800
12	—	29	3500	6	—	27	3200
14	—	29½	3860	7	—	29	3500
16	—	30	3900	8	—	30	3800
18	—	30½	4000	9	—	30¼	3900
20	—	31	4200	9	8	30½	4000

Ranges with French Mortars, at 45 Degrees,
in French Weights and Measures.

12 Inch.			10 Inch. long Ranges.			10 Inch. short Ranges.			8 Inch.
Charge.		Range.	Charge.		Range.	Charge.		Range.	Charge.		Range.
lbs.	oz.	Yards.	lbs.	oz.	Yards.	lbs.	oz.	Yards.	lbs.	oz.	Yards.
1	—	388	1	—	450	1	—	658	—	5	316
1	8	632	2	—	1080	1	8	964	—	10	794
2	—	862	3	—	1536	2	—	1280	—	15	1112
2	8	954	4	—	2070	2	8	1428	1	4	1280
3	—	1292	5	—	2206	3	—	1432
3	8	1390	6	2½	2304	3	10¼	1920

Medium Ranges with Land Service Iron Mortars,
at 45 Degrees. 1798.