Cartridge comparison
.280 Flanged Nitro Express vs 7x66mm Super Express
.280 Flanged Nitro Express and 7x66mm Super Express are both in the reference; see the full spec comparison below.
Side by side
| .280 Flanged Nitro Express | 7x66mm Super Express | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1906 | 1956 |
| Bullet diameter | 0.287″ | 0.285″ |
| Case length | 2.611″ | 2.5984″ |
| Max pressure | 42,786 psi | 63,817 psi |
| Recoil | 16.2–19 ft·lb | 29.1–35.3 ft·lb |
| Effective range | 400 yd | 400 yd |
| SAAMI | Not SAAMI standardized | Not SAAMI standardized |
| CIP | CIP standardized | CIP standardized |
| Obsolete | Obsolete | — |
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.
