Ammunition
The gun fired separate loading, bagged charge ammunition, with up to seven different propelling charges, from 1 (the smallest) to 7 (the largest). Muzzle velocity, range and penetration in the tables below are for maximum charge in form of complete M4A1 propelling charge.
| Propelling charges | ||||
| Model | Weight | Components | ||
| M3 | 2.69 kg (5 lb 15 oz) | Base charge and four incremental charges (for charges 1 to 5) | ||
| M4 | 6.29 kg (13 lb 14 oz) | Base charge and two incremental charges (for charges 5 to 7) | ||
| M4A1 | 6.31 kg (13 lb 15 oz) | Base charge and four incremental charges (for charges 3 to 7) | ||
| Mk I Dummy | 3.63 kg (8 lb) | Base charge and six incremental charges | ||
| M2 Dummy | 3.34 kg (7 lb 6 oz) | Base charge and six incremental charges | ||
| Projectiles | |||||
| Type | Model | Weight | Filler | Muzzle velocity | Range |
| HE | HE M102 Shell | 43.13 kg (100 lb) | TNT, 7.06 kg (15 lb 9 oz) | ||
| HE | HE M107 Shell | 43 kg (90 lb) | TNT, 6.86 kg (15 lb 2 oz) | 564 m/s (1,850 ft/s) | 14,955 m (16,355 yd) |
| Smoke | FS M105 Shell | 45.14 kg (100 lb) | Sulfur trioxide in Chlorosulfonic acid, 7.67 kg (16 lb 15 oz) | ||
| Smoke | WP M105 Shell | 44.55 kg (100 lb) | White phosphorus (WP), 7.08 kg (15 lb 10 oz) | ||
| Smoke | FS M110 Shell | 45.45 kg (100 lb) | Sulfur trioxide in Chlorosulfonic acid, 7.67 kg (16 lb 15 oz) | ||
| Smoke | WP M110 Shell | 44.63 kg (100 lb) | White phosphorus (WP), 7.08 kg (15 lb 10 oz) | ||
| Smoke, colored | BE M116 Shell | 39.21 kg (90 lb) | Smoke mixture, 7.8 kg (17 lb 3 oz) | ||
| Smoke | HC BE M116 Shell | 43.14 kg (100 lb) | Zinc chloride (HC), 11.7 kg (25 lb 13 oz) | 564 m/s (1,850 ft/s) | 14,955 m (16,355 yd) |
| Chemical | CNS M110 Shell | 44.05 kg (100 lb) | Chloroacetophenone (CN), 6.26 kg (13 lb 13 oz) | ||
| Chemical | H M110 Shell | 43.09 kg (90 lb) | Mustard gas, 5.02 kg (11 lb 1 oz) | 564 m/s (1,850 ft/s) | 14,972 m (16,374 yd) |
| Illumination | Illuminating M118 Shell | 46.77 kg (100 lb) | Illuminant candles, 4.02 kg (8 lb 14 oz) | ||
| Drill | Dummy Mk I Projectile | - | - | - | |
| Drill | Dummy M7 Projectile | 43.09 kg (90 lb) | - | - | - |
| Concrete penetration, mm | ||||
| Ammunition \ Distance | 0 | 914 m (1,000 yd) | 2,743 m (3,000 yd) | 4,572 m (5,000 yd) |
| HE M107 Shell (meet angle 0°) | 884 mm (2 ft 11 in) | 792 mm (2 ft 7 in) | 610 mm (2 ft) | 488 mm (1 ft 7 in) |
| Different methods of measurement were used in different countries / periods. Therefore, direct comparison is often impossible. | ||||
Read more about this topic: M114 155 Mm Howitzer