Cartridge comparison
.375 Viersco Magnum vs .378 Weatherby Magnum
.375 Viersco Magnum and .378 Weatherby Magnum are both in the reference; see the full spec comparison below.
Side by side
| .375 Viersco Magnum | .378 Weatherby Magnum | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1990 | 1953 |
| Bullet diameter | 0.375″ | 0.375″ |
| Case length | 3.445″ | 2.913″ |
| Max pressure | 64,800 psi | 63,817 psi |
| Recoil | 62.8–80.9 ft·lb | 50–70 ft·lb |
| Effective range | 300 yd | 400 yd |
| SAAMI | Not SAAMI standardized | SAAMI (not in current Z299) |
| CIP | Not 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.
