Rifle · CIP
.375 Swiss P
.375 Swiss P is a rebated bottlenecked rifle cartridge of Switzerland origin.
- Caliber
- 0.376″ · 9.55 mm
- Introduced
- 2021
- Case
- Rebated
- Parent
- .500 Jeffery
- Primary use
- Hunting
- Status
- Active
- Introduced
- 2021
- Type
- Rifle
- Origin
- Switzerland
- Inventor
- Swiss P
- Manufacturer
- SwissP Defence
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 125 gr H₂O
- Twist (typical)
- 1:12.0
- Primer
- Large Rifle Magnum
- Case type
- Rebated
- Max pressure
- 60,916 psi, CIP transducer
- Eff. range
- 300 yd
- Max range
- 1500 yd
- Recoil
- 73.1 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .375 Swiss P, 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
- .500 Jeffery
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 ⌀ | 9.55 | 0.376 | ✓ |
| Neck ⌀ | 10.30 | 0.406 | ✓ |
| Shoulder ⌀ | 14.80 | 0.583 | ✓ |
| Shoulder angle | 27° | — | ≈ |
| Base ⌀ | 15.73 | 0.619 | ✓ |
| Rim ⌀ | 14.93 | 0.588 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.52 | 0.060 | ✓ |
| Neck length | 8.00 | 0.315 | ≈ |
| Case length | 69.85 | 2.750 | ✓ |
| Overall length | 93.50 | 3.681 | ✓ |
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. .375 Swiss P 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 2021 by Swiss P, derived from the .500 Jeffery.
FAQs
- What twist rate does .375 Swiss P use?
- .375 Swiss P typically uses a 1:12.0 twist rate.
- What bullet diameter is .375 Swiss P?
- .375 Swiss P uses a 0.376″ (9.55 mm) diameter bullet.
- Is .375 Swiss P still in production?
- .375 Swiss P is active; typical availability is limited.
- What is .375 Swiss P used for?
- .375 Swiss P is primarily used for hunting.
- What is .375 Swiss P based on?
- .375 Swiss P is derived from the .500 Jeffery 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 →
