Rifle · CIP
8x75mmRS
German semi-rimmed sporting cartridge for double and combination guns; a lengthened 8x57mm designed for German express-style guns requiring a semi-rimmed case..
- Caliber
- 0.3236″ · 8.22 mm
- Introduced
- 1922
- Case
- Semi-Rimmed
- Parent
- 9x25mm Mauser Export
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1922
- Type
- Rifle
- Origin
- Germany
- Inventor
- Various German commercial
- Manufacturer
- Various German commercial
- Standard
- CIP
- Status
- Active
- Availability
- Rare
- Case capacity
- 81 gr H₂O
- Twist (typical)
- 1:9.4
- Primer
- Boxer Large Rifle
- Case type
- Semi-Rimmed
- Max pressure
- 55,114 psi, CIP transducer
- Eff. range
- 300 yd
- Max range
- 4450 yd
- Recoil
- 27.2–30.1 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 8x75mmRS, 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
- 9x25mm Mauser Export
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 ⌀ | 8.22 | 0.324 | ✓ |
| Neck ⌀ | 9.08 | 0.357 | ✓ |
| Shoulder ⌀ | 10.40 | 0.409 | ✓ |
| Shoulder angle | 13° | — | ✓ |
| Base ⌀ | 11.90 | 0.469 | ✓ |
| Rim ⌀ | 13.35 | 0.526 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.40 | 0.055 | ✓ |
| Neck length | 5.54 | 0.218 | ≈ |
| Case length | 74.60 | 2.937 | ✓ |
| Overall length | 96.00 | 3.780 | ✓ |
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. 8x75mmRS 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.
Firearms chambered in 8x75mmRS
Lineage
Connected reference
History
Developed in 1922 as a semi-rimmed 8mm cartridge for German break-open double rifles and combination guns that require a rim for reliable headspacing. The 8x75RS offers more powder capacity than the 8x57mm IS and is still CIP-standardized, produced by RWS and used in high-grade German double rifles.
FAQs
- What twist rate does 8x75mmRS use?
- 8x75mmRS typically uses a 1:9.4 twist rate.
- What bullet diameter is 8x75mmRS?
- 8x75mmRS uses a 0.3236″ (8.22 mm) diameter bullet.
- Is 8x75mmRS still in production?
- 8x75mmRS is active; typical availability is rare.
- What is 8x75mmRS used for?
- 8x75mmRS is primarily used for hunting.
- What is 8x75mmRS based on?
- 8x75mmRS is derived from the 9x25mm Mauser Export case.
Sources & provenance
- Standard C.I.P. (Commission Internationale Permanente) — C.I.P. TDCC Tab II datasheet — 8 x 75 RS · bullet ⌀ archived
- Secondary Municion.org (cartridge reference database) — 8 x 75 R S Behr — Munición.org · grain weights, bullet ⌀ 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 →
