Cartridge comparison
.280 Jeffery vs 7x64mm Brenneke
.280 Jeffery and 7x64mm Brenneke are both in the reference; see the full spec comparison below.
Side by side
| .280 Jeffery | 7x64mm Brenneke | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1913 | 1917 |
| Bullet diameter | 0.288″ | 0.2854″ |
| Case length | 2.5″ | 2.5197″ |
| Max pressure | — | 60,191 psi |
| Recoil | — | 12–16 ft·lb |
| Effective range | 400 yd | 350 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.