Cartridge comparison
.45 Mars Long vs .45 Winchester Magnum
.45 Mars Long and .45 Winchester Magnum are both in the reference; see the full spec comparison below.
Side by side
| .45 Mars Long | .45 Winchester Magnum | |
|---|---|---|
| Type | Pistol | Pistol |
| Introduced | 1899 | 1979 |
| Bullet diameter | 0.4488″ | 0.452″ |
| Case length | 1.0929″ | 1.198″ |
| Max pressure | 14,500 psi | 41,500 psi |
| Recoil | 20.4 ft·lb | 15.2–16.5 ft·lb |
| Effective range | 50 yd | 75 yd |
| SAAMI | Not SAAMI standardized | SAAMI standardized |
| 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.
