Lindcott Armory 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
- By real loads
- 2,360–2,526 fps · 23 loads
- Parent case
- 7.92x57mm Mauser
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open 8x57 JRS ammunition at Rivertown Munitions.
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
In production — 23 active loads across 15 brands. Top 15 shown · see all 23 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| Lapua | Naturalis | 185 | Naturalis | 2,690 | 2,972 | — |
| Kynoch | Classic | 196 | Soft Point | 2,526 | 2,776 | — |
| Wolf | FMJ | 196 | Soft Point | 2,526 | 2,776 | — |
| Norma | Classic | 196 | Soft Point | 2,526 | 2,776 | — |
| Lapua | Soft Point | 196 | SP | 2,526 | 2,776 | — |
| Buffalo Arms | Custom | 196 | Soft Point | 2,526 | 2,776 | — |
| Sellier & Bellot | SP | 196 | Soft Point | 2,526 | 2,776 | — |
| Sako | Gamehead | 196 | SP | 2,526 | 2,776 | — |
| Hornady | Custom | 195 | Interlock SP | 2,526 | 2,762 | — |
| RWS | Classic | 196 | Soft Point | 2,526 | 2,776 | — |
| Hornady | Custom | 195 | SST | 2,526 | 2,762 | — |
| Winchester | Super-X | 196 | Power Point | 2,526 | 2,776 | — |
| Armscor | Standard | 196 | Soft Point | 2,526 | 2,776 | — |
| PPU | Standard | 196 | Soft Point | 2,526 | 2,776 | — |
| PPU | Rifle | 198 | BTHP | 2,526 | 2,805 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
1 reloading powder 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
5 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 IMR 3031.
Sources & provenance
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 →