Rifle · Proprietary · Not SAAMI standardized · CIP standardizedObsolete
10.75x68mm
Long-action German dangerous game cartridge for the largest African species; the 68mm case provided extra powder capacity for maximum performance on elephant and buffalo..
- Caliber
- 0.4244″ · 10.78 mm
- Introduced
- 1908
- Case
- Rimless
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1908
- Type
- Rifle
- Origin
- Germany
- Inventor
- Various German commercial
- Manufacturer
- Various German commercial
- Standard
- Proprietary · Not SAAMI standardized · CIP standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 95 gr H₂O
- Twist (typical)
- 1:16.5
- Primer
- Berdan Large Rifle
- Case type
- Rimless
- Max pressure
- 47,863 psi, CIP transducer
- Eff. range
- 150 yd
- Max range
- 4450 yd
- Recoil
- 52.3–54 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 10.75x68mm, 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
- —
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.
CIP TDCC · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 10.78 | 0.424 | ✓ |
| Neck ⌀ | 11.51 | 0.453 | ✓ |
| Shoulder ⌀ | 12.20 | 0.480 | ✓ |
| Shoulder angle | 28° | — | ✓ |
| Base ⌀ | 12.57 | 0.495 | ✓ |
| Rim ⌀ | 12.57 | 0.495 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.30 | 0.051 | ✓ |
| Neck length | 14.00 | 0.551 | ≈ |
| Case length | 68.00 | 2.677 | ✓ |
| Overall length | 81.00 | 3.189 | ✓ |
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. 10.75x68mm is highlighted below.
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
The long-action companion to the 10.75x57mmR, the 10.75x68mm used a 68mm case to achieve higher velocities for use against the largest African dangerous game. Popular with German hunters before World War I, it saw use against elephant, Cape buffalo, and hippopotamus in German East Africa and Southwest Africa.
FAQs
- What twist rate does 10.75x68mm use?
- 10.75x68mm typically uses a 1:16.5 twist rate.
- What bullet diameter is 10.75x68mm?
- 10.75x68mm uses a 0.4244″ (10.78 mm) diameter bullet.
- Is 10.75x68mm still in production?
- 10.75x68mm is discontinued; typical availability is rare.
- What is 10.75x68mm used for?
- 10.75x68mm is primarily used for hunting.
Sources & provenance
- Standard C.I.P. — TDCC Tab I — 10,75 x 68 (data sheet, Germany, entry 1984-06-14) · bullet ⌀ archived
- Reference Gun Digest Books — Cartridges of the World, 15th ed. (Frank C. Barnes, 2016) — 10.75x68mm Mauser · grain weights, bullet ⌀, velocity, year
- Secondary Wikipedia — 10.75×68mm · bullet ⌀, velocity, grain weights archived
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
