Lindcott Armory Compare / 20mm Vulcan vs .950 JDJ
Cartridge comparison
20mm Vulcan vs .950 JDJ
20mm Vulcan is faster (3,450 vs 2,100 fps); 20mm Vulcan carries more energy (40,700 vs 35,213 ft·lb); .950 JDJ recoils less.
20mm Vulcan →Representative trajectory · 100 yd zero0–1000 yd Open in Ballistic Compare ↗
.950 JDJ →Representative trajectory · 100 yd zero0–500 yd Open in Ballistic Compare ↗
| 20mm Vulcan | .950 JDJ | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1956 | 2005 |
| Bullet ⌀ | 0.787″ | 0.95″ |
| Case length | 4.016″ | 2.75″ |
| Velocity | 3,300–3,450 fps | 2,100 fps |
| Energy | 37,200–40,700 ft·lb | 35,213 ft·lb |
| Max pressure | 65,000 psi | 45,000 psi |
| Recoil | 150–200 ft·lb | 120–160 ft·lb |
| Eff. range | 2000 yd | 200 yd |
FAQs
- Is 20mm Vulcan faster than .950 JDJ?
- 20mm Vulcan is faster — up to 3,450 fps versus 2,100 fps.
- Does 20mm Vulcan hit harder than .950 JDJ?
- 20mm Vulcan carries more muzzle energy (40,700 vs 35,213 ft·lb).