Lindcott Armory Compare / .30 Herrett vs .309 JDJ
Cartridge comparison
.30 Herrett vs .309 JDJ
.30 Herrett is faster (2,400 vs 2,200 fps); .309 JDJ carries more energy (1,934 vs 1,919 ft·lb).
.30 Herrett →Representative trajectory · 100 yd zero0–800 yd Open in Ballistic Compare ↗
.309 JDJ →Representative trajectory · 100 yd zero0–500 yd Open in Ballistic Compare ↗
| .30 Herrett | .309 JDJ | |
|---|---|---|
| Type | Pistol | Pistol |
| Introduced | 1971 | 1979 |
| Bullet ⌀ | 0.308″ | 0.308″ |
| Case length | 1.605″ | 2.225″ |
| Velocity | 2,000–2,400 fps | 1,800–2,200 fps |
| Energy | 1,156–1,919 ft·lb | 1,081–1,934 ft·lb |
| Max pressure | 55,000 psi | 42,000 psi |
| Recoil | 5–8 ft·lb | — |
| Eff. range | 300 yd | 150 yd |
FAQs
- Is .30 Herrett faster than .309 JDJ?
- .30 Herrett is faster — up to 2,400 fps versus 2,200 fps.
- Does .30 Herrett hit harder than .309 JDJ?
- .309 JDJ carries more muzzle energy (1,934 vs 1,919 ft·lb).