Cartridge comparison
.309 JDJ vs .338 JDJ
.309 JDJ and .338 JDJ are both in the reference; see the full spec comparison below.
Side by side
| .309 JDJ | .338 JDJ | |
|---|---|---|
| Type | Pistol | Pistol |
| Introduced | 1979 | 1979 |
| Bullet diameter | 0.308″ | 0.338″ |
| Case length | 2.2252″ | 2.2252″ |
| Max pressure | 42,000 psi | 42,000 psi |
| Effective range | 250 yd | 150 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.