Pistol · Not SAAMI standardized · Not standardizedObsolete
7.65mm Roth-Sauer
7.65mm Roth-Sauer is a rimless straight-walled pistol cartridge of Germany, Hungary origin.
- Caliber
- 0.3″ · 7.62 mm
- Introduced
- 1905
- Case
- Rimless
- Primary use
- Self-Defense, Target
- Status
- Obsolete
- Obsolete
- Obsolete
- Introduced
- 1905
- Type
- Pistol
- Origin
- Germany, Hungary
- Inventor
- Karel Krnka
- Manufacturer
- J.P. Sauer & Sohn
- Standard
- Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Obsolete
- Availability
- Collector
- Case capacity
- 6.6 gr H₂O
- Twist (typical)
- 1:10
- Primer
- Small Pistol
- Case type
- Rimless
- Max pressure
- 14,500 psi, CIP transducer
- Eff. range
- 50 yd
- Max range
- 250 yd
- Recoil
- 0.9 ft·lb
- Subsonic
- Capable
Introduced by J.P. Sauer & Sohn
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 7.65mm Roth-Sauer, 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.
Wikipedia · secondary source| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.62 | 0.300 | · |
| Neck ⌀ | 8.43 | 0.332 | · |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 8.51 | 0.335 | · |
| Rim ⌀ | 8.51 | 0.335 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.09 | 0.043 | · |
| Neck length | n/a | ||
| Case length | 12.95 | 0.510 | · |
| Overall length | 21.34 | 0.840 | · |
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. 7.65mm Roth-Sauer 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
Introduced around 1905 by Karel Krnka.
FAQs
- What twist rate does 7.65mm Roth-Sauer use?
- 7.65mm Roth-Sauer typically uses a 1:10 twist rate.
- What bullet diameter is 7.65mm Roth-Sauer?
- 7.65mm Roth-Sauer uses a 0.3″ (7.62 mm) diameter bullet.
- Is 7.65mm Roth-Sauer still in production?
- 7.65mm Roth-Sauer is obsolete; typical availability is collector.
- What is 7.65mm Roth-Sauer used for?
- 7.65mm Roth-Sauer is primarily used for self-defense, target.
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 →
