Cartridge comparison
.380 ACP vs 9mm Ultra
.380 ACP and 9mm Ultra are both in the reference; see the full spec comparison below.
Side by side
| .380 ACP | 9mm Ultra | |
|---|---|---|
| Type | Pistol | Pistol |
| Introduced | 1908 | 1936 |
| Bullet diameter | 0.355″ | 0.3547″ |
| Case length | 0.6799″ | 0.7028″ |
| Max pressure | 21,500 psi | 26,107 psi |
| Recoil | 4–6.5 ft·lb | 3–5 ft·lb |
| Effective range | 25 yd | 50 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.