Rifle · CIP
8x57 JRS
Rimmed version of 8mm Mauser for break-action double rifles and combination guns (Drillings and Vierlings).
- Caliber
- 0.3236″ · 8.22 mm
- Introduced
- 1905
- Case
- Rimmed
- Parent
- 7.92x57mm Mauser
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1905
- Type
- Rifle
- Origin
- Germany
- Inventor
- DWM
- Manufacturer
- DWM / various
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 57 gr H₂O
- Twist (typical)
- 1:9.84
- Primer
- Large Rifle
- Case type
- Rimmed
- Max pressure
- 47,863 psi
- Eff. range
- 300 yd
- Max range
- 900 yd
- Recoil
- 14–18 ft·lb
Ballistics
Published velocity/energy data isn't available for 8x57 JRS. Parent case: 7.92x57mm Mauser.
Performance
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
CIP TDCC · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 8.22 | 0.324 | ✓ |
| Neck ⌀ | 9.08 | 0.357 | ✓ |
| Shoulder ⌀ | 10.95 | 0.431 | ✓ |
| Shoulder angle | 18.2° | — | ✓ |
| Base ⌀ | 11.92 | 0.469 | ✓ |
| Rim ⌀ | 13.32 | 0.524 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.40 | 0.055 | ✓ |
| Neck length | 8.15 | 0.321 | ≈ |
| Case length | 57.00 | 2.244 | ✓ |
| Overall length | 82.00 | 3.228 | ✓ |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. 8x57 JRS is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Suitable powders
8 reloading powders listed for 8x57 JRS, fastest to slowest. Cross-reference in the finder →
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Firearms chambered in 8x57 JRS
4 models in the database chamber 8x57 JRS. Browse all →
Lineage
Connected reference
History
Developed in Germany in the early 1900s to provide a rimmed 8mm cartridge for break-action and combination firearms — the rimless 8x57 JS (standard Mauser) doesn't feed reliably in break-action extractors. The 8x57 JRS is one of the most popular hunting cartridges in Central Europe, particularly in Germany, Austria, Czech Republic, and Poland where driven boar hunting with Drillings (three-barrel combination guns) is traditional. RWS, Norma, Sellier & Bellot, and Geco produce factory ammunition.
FAQs
- What twist rate does 8x57 JRS use?
- 8x57 JRS typically uses a 1:9.84 twist rate.
- What bullet diameter is 8x57 JRS?
- 8x57 JRS uses a 0.3236″ (8.22 mm) diameter bullet.
- Is 8x57 JRS still in production?
- 8x57 JRS is active; typical availability is limited.
- What is 8x57 JRS used for?
- 8x57 JRS is primarily used for hunting.
- What is 8x57 JRS based on?
- 8x57 JRS is derived from the 7.92x57mm Mauser case.
- What are the best powders for 8x57 JRS?
- Reloading powders commonly listed for 8x57 JRS include Norma 201, IMR 3031, N135, 203-B, among 8 suitable options.
Sources & provenance
- Standard C.I.P. — C.I.P. TDCC — Tables of Dimensions of Cartridges and Chambers
- Standard C.I.P. (Commission Internationale Permanente) — C.I.P. TDCC TAB. II — 8 x 57 IRS (alternative name: 8 x 57 JRS) · grain_ballistics, representative_gun archived
- Manufacturer RWS Ammunition — RWS 8x57 JRS HIT 10,4g · grain_ballistics, representative_gun archived
- Manufacturer RWS Ammunition — RWS 8x57 JRS SPEED TIP PRO 11,7g · grain_ballistics, representative_gun archived
- Manufacturer Norma Precision — Norma Oryx 8x57 JRS 196gr (12.7g) — product 20180102 · grain_ballistics, representative_gun archived
- Manufacturer Sellier & Bellot — 8 × 57 JRS – SPCE (V341212) – 196 GRS · grain_ballistics, representative_gun archived
- Manufacturer RWS Ammunition — RWS 8x57 JRS ID Classic 12,8g · grain_ballistics, representative_gun
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 23 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →