Rifle · Proprietary · Not SAAMI standardized · Not standardizedObsolete
10.75x57mmR
German large-bore dangerous game cartridge for African and Asian hunting; used in heavy Mauser sporting rifles for elephant, Cape buffalo, and lion before being superseded..
- Caliber
- 0.423″ · 10.744 mm
- Introduced
- 1905
- Case
- Rimmed
- Parent
- 8x57mm J (8x57 I)
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1905
- Type
- Rifle
- Origin
- Germany
- Inventor
- Various German / Austrian
- Manufacturer
- Various German / Austrian
- Standard
- Proprietary · Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 71.3 gr H₂O
- Twist (typical)
- 1:16.5
- Primer
- Berdan Large Rifle
- Case type
- Rimmed
- Max pressure
- 40,000 psi, CIP transducer
- Eff. range
- 125 yd
- Max range
- 1975 yd
- Recoil
- 21.6–33.2 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 10.75x57mmR, so this is the shape gravity alone gives the advertised velocity. Drag would steepen it. The tool below solves real loads through their published G1 or G7 model.
Open in Ballistic Compare- Parent case
- 8x57mm J (8x57 I)
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
mixed/other · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 10.74 | 0.423 | ~ |
| Neck ⌀ | 11.38 | 0.448 | ~ |
| Shoulder ⌀ | 11.81 | 0.465 | ~ |
| Shoulder angle | 15° | — | |
| Base ⌀ | 11.94 | 0.470 | ~ |
| Rim ⌀ | 13.79 | 0.543 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.62 | 0.064 | |
| Neck length | 11.09 | 0.437 | |
| Case length | 57.00 | 2.244 | ~ |
| Overall length | 76.99 | 3.031 | ~ |
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. 10.75x57mmR is highlighted below.
Missing a dimension for 10.75x57mmR? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
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.
Lineage
Connected reference
History
Developed around 1905 for German colonial hunters in Africa and Asia, the 10.75x57mmR was chambered in the Mauser Model 98 action scaled for large bore cartridges. It was used against Cape buffalo, lion, elephant, and tiger before being supplanted by the more powerful .404 Jeffery and 9.3x64mm in the early 20th century. Still produced by RWS in limited quantities.
FAQs
- What twist rate does 10.75x57mmR use?
- 10.75x57mmR typically uses a 1:16.5 twist rate.
- What bullet diameter is 10.75x57mmR?
- 10.75x57mmR uses a 0.423″ (10.744 mm) diameter bullet.
- Is 10.75x57mmR still in production?
- 10.75x57mmR is discontinued; typical availability is rare.
- What is 10.75x57mmR used for?
- 10.75x57mmR is primarily used for hunting.
- What is 10.75x57mmR based on?
- 10.75x57mmR is derived from the 8x57mm J (8x57 I) case.
Sources & provenance
- Reference 10,75x57 (Guns / metric cartridge database) · velocity_max_fps
- Reference 10.75x57 Mauser Bolt Action Rifle (citing Cartridges of the World) · velocity_max_fps
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
