Cartridge comparison
7mm WSM vs 7x66mm Super Express
7mm WSM and 7x66mm Super Express are both in the reference; see the full spec comparison below.
Side by side
| 7mm WSM | 7x66mm Super Express | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 2001 | 1956 |
| Bullet diameter | 0.284″ | 0.285″ |
| Case length | 2.1″ | 2.5984″ |
| Max pressure | 65,000 psi | 63,817 psi |
| Recoil | 18–26 ft·lb | 29.1–35.3 ft·lb |
| Effective range | 700 yd | 400 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.
