A military dictionary

by William Duane

[14] Stone Mortars should not be fired at a greater distance than 250 yards.

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

13 Inch.					10 Inch.					8 Inch.					5¹⁄₂ Inch, Brass.
Ch’ge.		Flig’t.		Range.	Ch’ge.		Flig’t.		Range.	Ch’ge.		Flig’t.		Range.	Ch’ge.		Flig’t.		Range.
lbs.	oz.	Sec.		Yds.	lb.	oz.	Sec.		Yds.	lbs.	oz.	Sec.		Yds.	oz.	dr.	Sec.		Yds.
—	14	6	¹⁄₂	245	—	8	6	¹⁄₂	235	—	5	6		225	1	8	5	¹⁄₂	155
1	—	7	-	318	—	10	8		358	—	6	7	¹⁄₂	328	1	12	6		198
1	4	8	-	412	—	12	9		464	—	7	8		428	2	—	6	-	255
1	8	9	-	523	—	14	10		534	—	8	9	-	474	2	4	7	-	316
1	12	10	-	613	1	—	10	-	638	—	9	10		560	2	8	8		380
2	—	11		697	1	2	11	-	749	—	10	11		664	2	12	8	-	426
2	4	12	-	840	1	4	13		873	—	11	12		762	3	—	9	-	470
2	8	13		906	1	6	13	-	956	—	12	12	-	801	3	4	10		540
2	12	14		1054	1	8	14		1028	—	13	13	-	859	3	8	10	-	590
3	—	15		1132	1	10	15		1123	—	14	14		960	3	12	11		630
3	4	16		1244	1	12	15		1226	—	15	14	-	1011	4	—	11	-	725
3	8	16	-	1317	1	14	16		1325	1	0	14	-	1119	4	4	12		746
3	12	17		1424	2	—	16	-	1357	1	1	15		1156	4	8	12	-	800
4	—	17		1490	2	2	17		1480	1	2	16		1262	4	12	13	-	910
4	4	17	-	1580	2	4	17	-	1532	1	3	16	-	1320	5	—	13	-	935
4	8	18	-	1656	2	6	17	-	1571	1	4	17		1380	5	4	14		1016
4	12	19		1744	2	8	18	-	1700	1	5	17	-	1446	5	8	—		—
5	—	19	-	1824	2	10	19		1780	1	6	18		1530	5	12	—		—
5	4	19	-	1900	2	12	19	-	1825	1	7	18	-	1600	6	—	15		1175
5	8	20		1950	2	14	20		1880	1	8	19		1660
5	12	20	-	2062	3	—	20		1916	1	9	19	-	1720
6	—	21		2095	4	—	25		2485
7	—	24		2510	4	8	26		2536
8	—	25		2706

Medium Ranges with Brass Mortars, at 45 Degrees. 1780.

13 Inch.[15]			10 Inch.			8 Inch.
Ch’ge.		Range.	Ch’ge.		Range.	Ch’ge.		Range.
lb.	oz.	Y’ds.	lb.	oz.	Y’ds.	oz.	dr.	Y’ds.
2	12	862	1	10	823	10	8	580
2	14	939	1	11	852	11	—	635
3	—	998	1	12	783	11	8	711
3	2	1003	1	13	758	12	—	708
3	4	1090	1	14	823	12	8	701
3	6	1139	1	15	888	13	—	777
3	8	1165	2	—	892	13	8	825
3	10	1209	2	1	940	14	—	870
3	12	1270	2	2	941	14	8	853
3	14	1322	2	3	1041	15	—	860
4	—	1309	2	4	1128	15	8	899
4	2	1331	2	5	1103	16	—	921
4	4	1391	2	6	1221	16	8	987
4	6	1363	2	7	1258	17	—	987
4	8	1324	2	8	1215	17	8	1062

[15] For the Ranges with the 5¹⁄₂ inch Brass, see the [Iron Mortars].

Ranges with a 5¹⁄₂ Inch Brass Mortar, at 15 Degrees.

Charge.		Flight.		First Graze.	Rolled to.
oz.	dr.	Sec.		Yards.	Yards.
2	8	3		209	303
3	—	3	¹⁄₂	256	330
3	8	4		375	443
4	—	4	-	457	501
4	8	5		530	600
5	—	5	-	561	627
5	8	6	-	667	715
6	—	7		709	780

Medium Ranges with Land Service Iron Mortars, at 10 Degrees Elevation....Powder in Cartridges.

10 Inch.						8 Inch.
Flight.		Charge.		First Graze.	Extreme Range.	Flight.		Charge.		First Graze.	Extreme Range.
Sec.		lb.	oz.	Yds.	Yds.	Sec.		lb.	oz.	Yds.	Yds.
3		—	12	198	415	3		—	8	202	403
3	¹⁄₂	1	—	278	458	3		—	10	266	461
4		1	4	366	564	3	¹⁄₄	—	12	351	614
4	¹⁄₂	1	8	451	685	4		—	14	413	630
4		1	12	432	686	4	³⁄₄	1	—	468	754
4	³⁄₄	2	—	559	938	5		1	2	562	811
5		2	4	602	798	6		1	4	664	950
4	³⁄₄	2	8	597	976	6	¹⁄₂	1	6	700	1028
5		2	12	664	1121	6		1	8	768	1064
5	¹⁄₄	3	—	764	1169