Principal Characteristics of Seige, Garrison, and Seacoast Artillery Pieces

Seige and Garrison Artillery
Field Artillery Piece	Bore diameter (inches)	Material	Length of tube (inches)	Weight of tube (pounds)	Weight of projectile (pounds)	Weight of charge (pounds)	Range at 5° elevation (yards)
4 1/2-inch Rifle	4.50	Iron	133.0	3,450	33.0	3.50	2,078
30-pdr Parrott Rifle	4.50	Iron	136.00	4,200	¹ 29.0	3.75	2,200
24-pdr Gun	5.82	Iron	124.00	6,240	24.4	6.00	1,901
18-pdr Gun	5.30	Iron	123.25	4,680	18.5	4.50	1,592
12-pdr Gun	4.62	Iron	116.00	3,120	12.3	4.00	1,834
8-inch Howitzer	8.00	Iron	61.50	2,614	¹ 50.5	4.00	1,241
8-inch Mortar	8.00	Iron	22.50	930	¹ 44.5	3.75	² 1,200
10-inch Mortar	10.00	Iron	28.00	1,852	¹ 87.5	4.00	² 2,100
24-pdr Coehorn Mortar	5.82	Bronze	16.32	164	¹ 17.0	0.50	^2,4 1,200

Seacoast Artillery
Field Artillery Piece	Bore diameter (inches)	Material	Length of tube (inches)	Weight of tube (pounds)	Weight of projectile (pounds)	Weight of charge (pounds)	Range at 5° elevation (yards)
32-pdr Gun	6.40	Iron	125.20	7,200	32.6	8.00	1,922
42-pdr Gun	7.00	Iron	129.00	8,465	42.7	10.50	1,955
8-inch Columbiad	8.00	Iron	124.00	9,210	65.0	10.00	⁵ 1,813
10-inch Columbiad	10.00	Iron	126.00	15,400	128.0	18.00	⁶ 1,814
15-inch Columbiad	15.00	Iron	182.00	50,000	¹ 302.0	40.00	⁷ 1,518
100-pdr Parrott	6.40	Iron	151.00	9,700	100.0	10.00	⁸ 2,247
200-pdr Parrott	8.00	Iron	159.00	16,300	175.0	16.00	2,000
300-pdr Parrott	10.00	Iron	173.00	26,500	250.0	25.00	---
10-inch Mortar	10.00	Iron	46.00	5,775	¹ 87.5	10.00	² 4,250
13-inch Mortar	13.00	Iron	53.00	17,120	¹ 220.0	20.00	² 4,325
80-pdr Whitworth Rifle	5.00	Iron	120.00	8,960	70.0	12.00	7,722
70-pdr Armstrong Breechloading Rifle	6.40	Iron & Steel	110.00	6,903	71.7	10.00	⁹ 2,266
8-inch Blakely Rifle	8.00	Steel	³ 156.00	17,000	200.0	50.00	---
150-pdr Armstrong Rifle	8.50	Steel	129.75	14,896	150.0	20.00	---
12 3/4-inch Blakely Rifle	12.75	Steel	192.00	54,000	¹ 700.0	---	---

1. Weight of Shell. 2. Mortar ranges are given at an elevation of 45°. 3. Bore Length Only. 4. Designed to be moved and operated by two men. 5. Obtained ranges of over 4,812 yards with shell and 27° elevation. 6. Obtained ranges of over 5,600 yards with shell and 39° elevation. 7. Obtained ranges of 4,680 yards with a 315-lb. shell and 50 lbs. powder at 25°. 8. Extreme Range 8,428 yards. 9. Muzzle-loading Armstrongs had practically identical dimensions and ranges.