Range table
A range table was a list of angles of elevation a particular artillery gun barrel needed to be set to, to strike a target at a particular distance with a projectile of a particular weight using a propellant cartridge of a particular weight. They were used for several centuries by field and naval gunners of all countries until gradually replaced by computerised fire-control systems beginning in World War II (1939–1945).
Range table for US 3-inch field gun, models 1902-1905
This gun used a standard "fixed" cartridge with 15-pound shell, hence a single set of tables applied to all its ammunition.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ae/US_3_inch_field_gun_range_tables_1917.jpeg/600px-US_3_inch_field_gun_range_tables_1917.jpeg)
Range table for British 3 inch Stokes Mortar, 1917
Different propellant charges were used to achieve required range, angle of descent and flight time. This is typical of mortars and howitzers.
(Provisional) Range Table For 3-Inch Stokes Mortar, Printed in September 1917.[1]
Cartridge : 95 grains ballistite, reinforced with Charges : 5 grains, guncotton yarn
Rings : 110 grains, .3 mm flake cordite
Projectile : Bomb, 10 lb. 11 oz
Cartridge Only | 1 Ring | 2 Rings | 3 Rings | 4 Rings | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Range | Time of Flight |
Range | Time of Flight |
Range | Time of Flight |
Range | Time of Flight |
Range | Time of Flight | |
degs | yds | secs | yds | secs | yds | secs | yds | secs | yds | secs |
45 | 240 | 7·1 | 420 | 9·6 | 550 | 11·6 | 660 | 13·2 | 800 | 15·0 |
50 | 233 | 7·6 | 411 | 10·4 | 538 | 12·5 | 649 | 14·3 | 780 | 16·2 |
52 | 228 | 7·8 | 404 | 10·7 | 530 | 12·9 | 639 | 14·7 | 767 | 16·6 |
54 | 222 | 8·0 | 395 | 10·9 | 518 | 13·2 | 626 | 15·1 | 748 | 17·0 |
56 | 215 | 8·2 | 384 | 11·2 | 503 | 13·5 | 608 | 15·4 | 726 | 17·4 |
58 | 207 | 8·4 | 371 | 11·4 | 486 | 13·8 | 589 | 15·8 | 701 | 17·8 |
60 | 197 | 8·5 | 357 | 11·7 | 467 | 14·1 | 567 | 16·1 | 672 | 18·2 |
61 | 193 | 8·6 | 349 | 11·8 | 457 | 14·3 | 554 | 16·3 | 656 | 18·4 |
62 | 187 | 8·7 | 340 | 11·9 | 445 | 14·4 | 542 | 16·4 | 640 | 18·5 |
63 | 182 | 8·8 | 332 | 12·0 | 434 | 14·5 | 528 | 16·6 | 623 | 18·7 |
64 | 176 | 8·8 | 323 | 12·1 | 422 | 14·6 | 514 | 16·7 | 605 | 18·8 |
65 | 170 | 8·9 | 313 | 12·2 | 409 | 14·8 | 499 | 16·9 | 586 | 19·0 |
66 | 164 | 9·0 | 303 | 12·3 | 396 | 14·9 | 483 | 17·0 | 567 | 19·1 |
67 | 158 | 9·0 | 292 | 12·4 | 383 | 15·0 | 468 | 17·1 | 547 | 19·2 |
68 | 152 | 9·1 | 281 | 12·5 | 369 | 15·1 | 451 | 17·2 | 526 | 19·4 |
69 | 145 | 9·2 | 270 | 12·5 | 354 | 15·2 | 434 | 17·4 | 505 | 19·5 |
70 | 138 | 9·2 | 259 | 12·6 | 339 | 15·3 | 416 | 17·5 | 483 | 19·6 |
71 | 131 | 9·2 | 247 | 12·7 | 324 | 15·4 | 398 | 17·6 | 460 | 19·7 |
72 | 124 | 9·3 | 235 | 12·8 | 308 | 15·5 | 379 | 17·7 | 437 | 19·8 |
73 | 117 | 9·3 | 223 | 12·9 | 292 | 15·5 | 360 | 17·8 | 413 | 19·9 |
74 | 109 | 9·4 | 210 | 12·9 | 275 | 15·6 | 340 | 17·9 | 389 | 20·0 |
75 | 102 | 9·4 | 197 | 13·0 | 259 | 15·7 | 320 | 18·0 | 364 | 20·1 |
Notes
- ^ Range Tables transcribed and supplied courtesy of John Reed
References
- (Provisional) Range Table For 3-Inch Stokes Mortar, September 1917. United Kingdom War Office.
- William Westervelt, "Gunnery and explosives for field artillery officers", Government Printing Office, Washington, 1911, Appendix B.