Kind.Weight.Length.[13]Powder
contained
in
Chamber.		Range
at 45°.
Ct.qr.lbs.Ft.In.lbs.oz.Yds.
13- Brass -Sea S.-  82— 853 32—4100
Iron82 1— 20—
Brass -Land.-  25—1037¹⁄₂ 912 2100
Iron36 212  98
10- Brass -Sea S.-  33——48 128 3800
Iron41—— 10—
Brass -Land.-  10 12529  410 1900
Iron16— 6  48
8- Brass -Land.-   4 1 821³⁄₄ 2—1600
Iron 8—11  24
5¹⁄₂Brass—Land.-   1—2014¹⁄₄—9 1200
4²⁄₅Brass—Land.— 31111¹⁄₂—4¹⁄₂1040

[13] See the word [Chambers], for experiments on the best form.

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— 3881— 4501— 618— 5 316
18 6322—108018  964—10 794
2— 8623—15362—1280—151112
28 9544—207028 14281 41280
3—12925—22063—1432
38139062¹⁄₂2304310¹⁄₄1920

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

Weight
of
Mortar.		Weight
of
Shell.		Charge.Eleva-
tion.		Flight.Range.
ct.qrs.lbs. lbs.oz. lbs.oz.Deg. Sec.Yards.
34214-  86—  -5821-  14³⁄₄2335
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  6901—13  680
 4—18 14002—18 1340
 6—21 19003—21 1900
 8—24¹⁄₂25754—24¹⁄₂2500
10—26-29755—26 2800
12—29 35006—27 3200
14—29-36607—29 3500
16—30 39008—30 3800
18—30-42009—30¹⁄₄3900
20—31 44009830 ¹⁄₂4000

French Mortars, in their own Weights and Measures.

lbs.
12Inches2060  37 2400
10for long Ranges2000  74 2800
10for short do.1560  4—2200
8for short do. 595  14³⁄₄1160
Stone Mortars.[14]1100  28
12Inch -Gomers2750 12—2700
10Inch2000  68 2800
8Inch 600  2—1400