Rifle · Not SAAMI standardized · Not standardizedObsolete
.375 SOCOM
.375 SOCOM is a rebated bottlenecked rifle cartridge of United States origin.
- Caliber
- 0.375″ · 9.525 mm
- Introduced
- 2015
- Case
- Rebated
- Parent
- .458 SOCOM
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 2015
- Type
- Rifle
- Origin
- United States
- Inventor
- Tromix
- Manufacturer
- Tromix
- Standard
- Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 60 gr H₂O
- Twist (typical)
- 1:12.0
- Primer
- Large Pistol Magnum
- Case type
- Rebated
- Max pressure
- 35,000 psi, SAAMI transducer
- Eff. range
- 250 yd
- Max range
- 1250 yd
- Recoil
- 13–15.7 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .375 SOCOM, 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
- .458 SOCOM
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 · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 9.53 | 0.375 | · |
| Neck ⌀ | 10.29 | 0.405 | · |
| Shoulder ⌀ | 13.49 | 0.531 | · |
| Shoulder angle | 30° | — | |
| Base ⌀ | 13.74 | 0.541 | · |
| Rim ⌀ | 12.01 | 0.473 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.04 | 0.041 | · |
| Neck length | 5.70 | 0.224 | |
| Case length | 40.00 | 1.575 | · |
| Overall length | 57.40 | 2.260 | · |
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 SOCOM is highlighted below.
Missing a dimension for .375 SOCOM? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
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
Developed by Tromix, derived from the .458 SOCOM.
FAQs
- What twist rate does .375 SOCOM use?
- .375 SOCOM typically uses a 1:12.0 twist rate.
- What bullet diameter is .375 SOCOM?
- .375 SOCOM uses a 0.375″ (9.525 mm) diameter bullet.
- Is .375 SOCOM still in production?
- .375 SOCOM is discontinued; typical availability is rare.
- What is .375 SOCOM used for?
- .375 SOCOM is primarily used for hunting.
- What is .375 SOCOM based on?
- .375 SOCOM is derived from the .458 SOCOM 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 →
