Cartridge comparison
.270 WSM vs .275 No. 2 Magnum
.270 WSM and .275 No. 2 Magnum are both in the reference; see the full spec comparison below.
Side by side
| .270 WSM | .275 No. 2 Magnum | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 2002 | 1927 |
| Bullet diameter | 0.2772″ | 0.284″ |
| Case length | 2.1″ | 2.5″ |
| Max pressure | 65,000 psi | 22,000 psi |
| Recoil | 14–18 ft·lb | 12.5 ft·lb |
| Effective range | 500 yd | 300 yd |
| SAAMI | SAAMI standardized | Not SAAMI standardized |
| CIP | CIP standardized | Not 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.
