Cartridge comparison
20mm Vulcan vs 23mm Volkov-Yartsev
20mm Vulcan and 23mm Volkov-Yartsev are both in the reference; see the full spec comparison below.
Side by side
| 20mm Vulcan | 23mm Volkov-Yartsev | |
|---|---|---|
| Type | Rifle | Autocannon |
| Introduced | 1956 | 1941 |
| Bullet diameter | 0.7874″ | 0.9055″ |
| Case length | 4.0157″ | 5.9843″ |
| Max pressure | 65,000 psi | — |
| Recoil | 150–200 ft·lb | — |
| Effective range | 2000 yd | 450 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.
Case profiles, to scale
Drawn to the same scale, so the proportions are true. Physical size varies with your screen.