Cartridge comparison
.500 Jeffery vs .577/500 Nitro Express
.500 Jeffery and .577/500 Nitro Express are both in the reference; see the full spec comparison below.
Side by side
| .500 Jeffery | .577/500 Nitro Express | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1920 | 1898 |
| Bullet diameter | 0.5098″ | 0.508″ |
| Case length | 2.75″ | 3.13″ |
| Max pressure | 47,863 psi | 18,000 psi |
| Recoil | 150.8–163 ft·lb | 61.2 ft·lb |
| Effective range | 100 yd | 150 yd |
| SAAMI | Not 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.
