Cartridge comparison
.338 RCM vs .338 Weatherby RPM
.338 RCM and .338 Weatherby RPM are both in the reference; see the full spec comparison below.
Side by side
| .338 RCM | .338 Weatherby RPM | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 2008 | 2022 |
| Bullet diameter | 0.338″ | 0.3383″ |
| Case length | 2.015″ | 2.55″ |
| Max pressure | 65,000 psi | 65,000 psi |
| Recoil | 22–28.3 ft·lb | 31.7–36.1 ft·lb |
| Effective range | 350 yd | 500 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.
