Lindcott Armory Compare / 8x56mmR vs 8x57 JRS
Cartridge comparison
8x56mmR vs 8x57 JRS
8x57 JRS is faster (2,560 vs 2,395 fps); 8x57 JRS carries more energy (3,198 vs 2,648 ft·lb).
8x56mmR →Representative trajectory · 100 yd zero0–500 yd Open in Ballistic Compare ↗
8x57 JRS →Representative trajectory · 100 yd zero0–800 yd Open in Ballistic Compare ↗
| 8x56mmR | 8x57 JRS | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1930 | 1905 |
| Bullet ⌀ | 0.329″ | 0.323″ |
| Case length | 2.205″ | 2.244″ |
| Velocity | 2,230–2,395 fps | 2,330–2,560 fps |
| Energy | 2,294–2,648 ft·lb | 2,364–3,198 ft·lb |
| Max pressure | 52,000 psi | 47,863 psi |
| Recoil | 14–18 ft·lb | 14–18 ft·lb |
| Eff. range | 600 yd | 400 yd |
FAQs
- Is 8x56mmR faster than 8x57 JRS?
- 8x57 JRS is faster — up to 2,560 fps versus 2,395 fps.
- Does 8x56mmR hit harder than 8x57 JRS?
- 8x57 JRS carries more muzzle energy (3,198 vs 2,648 ft·lb).