Cartridge comparison
.40-65 Winchester vs .400 Whelen
.40-65 Winchester and .400 Whelen are both in the reference; see the full spec comparison below.
Side by side
| .40-65 Winchester | .400 Whelen | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1887 | 1987 |
| Bullet diameter | 0.406″ | 0.411″ |
| Case length | 2.1″ | 2.4902″ |
| Max pressure | 30,458 psi | 55,000 psi |
| Recoil | 10.4–12 ft·lb | 40–55 ft·lb |
| Effective range | 200 yd | 300 yd |
| SAAMI | Not SAAMI standardized | Wildcat |
| 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.
