Cartridge comparison
8x52mmR Siamese vs 8x57 JRS
8x52mmR Siamese and 8x57 JRS are both in the reference; see the full spec comparison below.
Side by side
| 8x52mmR Siamese | 8x57 JRS | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1923 | 1905 |
| Bullet diameter | 0.321″ | 0.3236″ |
| Case length | 2.04″ | 2.2441″ |
| Max pressure | 45,000 psi | 47,863 psi |
| Recoil | 13.2–15.2 ft·lb | 14–18 ft·lb |
| Effective range | 500 yd | 300 yd |
| SAAMI | Not SAAMI standardized | Not 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.
