Cartridge comparison
20mm Hispano vs .50 BMG
20mm Hispano and .50 BMG are both in the reference; see the full spec comparison below.
Side by side
| 20mm Hispano | .50 BMG | |
|---|---|---|
| Type | Autocannon | Rifle |
| Introduced | 1938 | 1921 |
| Bullet diameter | 0.7874″ | 0.511″ |
| Case length | 4.3346″ | 3.9098″ |
| Max pressure | — | 55,000 psi |
| Recoil | — | 100–200 ft·lb |
| Effective range | 600 yd | 2000 yd |
Highlighted cells hold the clear edge where both sides have a number. Every figure is a range maximum from the reference; typical loads run lower.