X60
12.7x99 mm ball cartridge with steel case, bullet X60
A .50 (12.7 x 99 mm) cartridge with a lacquered steel case and a 45 g mild steel cored ball bullet X60, for use in all .50 calibre machine guns.
Also written: 12.7x99
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Specification
| Calibre | .50 (12.7 x 99 mm) |
|---|---|
| Bullet | X60, 45 g, tip painted red |
| Bullet construction | Brass (CuZn10) plated steel jacket, mild steel core, inert composition |
| Cartridge case | Steel, lacquered in brown colour |
| Primer | Boxer type, non-corrosive |
| Propellant | Single or double base type |
| Medium velocity of bullet at 24 m | V24 = 886 m/s ± 9 m/s |
| Average max. pressure | Pmed.max ≤ 379 MPa |
| Individual max. pressure | Pmax.max ≤ 395 MPa |
| Accuracy | R50 ≤ 19 cm at 300 m; pooled mean of vertical and horizontal standard deviations of 90 rounds ≤ 300 mm at 550 m |
| Packing | 85 cartridges per UN certified steel ammunition box; 105 (104+1) steel boxes per wooden pallet |
| Cartridges per pallet | 8840 rds |
| Pallet dimensions (L×l×h) | 1130 x 885 x 850 mm |
| Net / gross pallet weight | 1011 / 1146 kg |
| Hazard class | 1.4C |
| N.E.Q. | 15 g |
| TNT equivalent | 1.9 g |
All data provided for information purposes; final specification is defined per contract.