Rifle · CIP
9.3mm RSM
9.3mm RSM is a rimless bottlenecked rifle cartridge of Germany origin.
- Caliber
- 0.3661″ · 9.3 mm
- Introduced
- 2011
- Case
- Rebated
- Parent
- .300 WSM
- Primary use
- Hunting
- Status
- Active
- Introduced
- 2011
- Type
- Rifle
- Origin
- Germany
- Inventor
- Michael Uekötter / Roedale Precision
- Manufacturer
- Michael Uekötter / Roedale Precision
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 83.5 gr H₂O
- Twist (typical)
- 1:16.0
- Primer
- Large Rifle
- Case type
- Rebated
- Max pressure
- 63,817 psi, CIP transducer
- Eff. range
- 300 yd
- Max range
- 1500 yd
- Recoil
- 37.6–42.1 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 9.3mm RSM, 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
- .300 WSM
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 ⌀ | 9.30 | 0.366 | ✓ |
| Neck ⌀ | 9.98 | 0.393 | ✓ |
| Shoulder ⌀ | 13.67 | 0.538 | ✓ |
| Shoulder angle | 34.9° | — | ≈ |
| Base ⌀ | 14.12 | 0.556 | ✓ |
| Rim ⌀ | 13.59 | 0.535 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.37 | 0.054 | ✓ |
| Neck length | 8.44 | 0.332 | ≈ |
| Case length | 53.32 | 2.099 | ✓ |
| Overall length | 75.00 | 2.953 | ✓ |
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. 9.3mm RSM 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.
Lineage
Connected reference
History
Introduced around 2011.
FAQs
- What twist rate does 9.3mm RSM use?
- 9.3mm RSM typically uses a 1:16.0 twist rate.
- What bullet diameter is 9.3mm RSM?
- 9.3mm RSM uses a 0.3661″ (9.3 mm) diameter bullet.
- Is 9.3mm RSM still in production?
- 9.3mm RSM is active; typical availability is limited.
- What is 9.3mm RSM used for?
- 9.3mm RSM is primarily used for hunting.
- What is 9.3mm RSM based on?
- 9.3mm RSM is derived from the .300 WSM case.
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 →
