Cartridge comparison
11mm Vickers vs 20mm Hispano
11mm Vickers and 20mm Hispano are both in the reference; see the full spec comparison below.
Side by side
| 11mm Vickers | 20mm Hispano | |
|---|---|---|
| Type | Rifle | Autocannon |
| Introduced | 1917 | 1938 |
| Bullet diameter | 0.4475″ | 0.7874″ |
| Case length | 2.3228″ | 4.3346″ |
| Max pressure | 42,000 psi | — |
| Recoil | 15–22 ft·lb | — |
| Effective range | 500 yd | 600 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.