Rifle · Proprietary

10.75x57mmR

10.75x57R Mauser10.75mm Mauser10.75x57 Mauser

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for African and Asian hunting; used in heavy Mauser sporting rifles for elephant, Cape buffalo, and lion before being superseded..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
Status
Discontinued
Velocity—–1,940 fps
Identity
Introduced
1905
Type
Rifle
Origin
Germany
Inventor
Various German / Austrian
Standard
Proprietary
Status
Discontinued
Availability
Rare
Build
Primer
Berdan Large Rifle
Case type
Rimmed
Pressure & range
Max pressure
40,000 psi
Eff. range
125 yd

Ballistics

Representative trajectory · 100 yd zero0–500 yd
100 yd · zero0″−92″92″ drop @ 500 yd0250500Open in Ballistic Compare ↗
Parent case

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
Measuremmin
Bullet ⌀10.740.423~
Neck ⌀11.380.448~
Shoulder ⌀11.810.465~
Shoulder angle
Base ⌀11.940.470~
Rim ⌀13.790.543~
Belt ⌀n/a
Rim thickness
Neck length
Case length57.002.244~
Overall length76.993.031~

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.

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 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.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →