M20
12.7 x 99 mm API-T M20
Armour piercing incendiary tracer machine gun cartridge with trace observable from 91 to 1463 m from the gun muzzle.
Also written: .50, .50 BMG, .50 Browning, 12,7x99, 12.7 x 99, 12.7X99, 12.7x99, 127x99
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Specification
| Calibre | 12.7 mm |
|---|---|
| Round mass | 109.25 g |
| Projectile mass | 40.2 g |
| Propellant mass | approx. 14.9 g |
| Round length | 138.43 mm |
| Muzzle velocity | 887 +/- 9.14 m/s |
| Mean max pressure | 3867 bar for group of rounds |
| Trace | visible from 91 to 1463 m observed from gun muzzle |
| Weapon compatibility | M2 HB and M85 machine guns and other compatible weapons |
| Packaging | 140 rds in waterproof M2A1 metal case; 2 metal cases in a wooden case |
All data provided for information purposes; final specification is defined per contract.