Handgun · Wildcat
.375 Super Magnum
A big-bore straight-wall wildcat throwing .375 bullets, built for handgun hunting..
- Caliber
- 0.375″ · 9.525 mm
- Introduced
- 1983
- Case
- Rimmed
- Parent
- .375 Winchester
- Primary use
- Self-Defense, Target
- Status
- Wildcat
- Introduced
- 1983
- Type
- Handgun
- Origin
- United States
- Inventor
- Elgin Gates
- Manufacturer
- Handloaded only (wildcat; no factory ammunition)
- Standard
- Wildcat
- Status
- Wildcat
- Availability
- Rare
- Case capacity
- 38 gr H₂O
- Twist (typical)
- 1:18.75
- Primer
- Large Rifle
- Case type
- Rimmed
- Max pressure
- 32,600 CUP, SAAMI crusher
- Eff. range
- 200 yd
- Max range
- 3300 yd
- Recoil
- 4–5.1 ft·lb
- Subsonic
- Capable
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .375 Super Magnum, 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
- .375 Winchester
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.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 9.53 | 0.375 | · |
| Neck ⌀ | 10.16 | 0.400 | · |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 10.67 | 0.420 | ~ |
| Rim ⌀ | 12.85 | 0.506 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.60 | 0.063 | ~ |
| Neck length | n/a | ||
| Case length | 40.89 | 1.610 | · |
| Overall length | 55.63 | 2.190 | ~ |
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 Super Magnum 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
The .375 Super Magnum was introduced in 1983 by Elgin Gates.
FAQs
- What twist rate does .375 Super Magnum use?
- .375 Super Magnum typically uses a 1:18.75 twist rate.
- What bullet diameter is .375 Super Magnum?
- .375 Super Magnum uses a 0.375″ (9.525 mm) diameter bullet.
- Is .375 Super Magnum still in production?
- .375 Super Magnum is wildcat; typical availability is rare.
- What is .375 Super Magnum used for?
- .375 Super Magnum is primarily used for self-defense, target.
- What is .375 Super Magnum based on?
- .375 Super Magnum is derived from the .375 Winchester case.
Sources & provenance
- Manufacturer Hornady — Hornady Obsolete Load Data — 375 Super Magnum · grain weights, velocity, bullet ⌀ archived
- Manufacturer Sierra — Sierra Handgun Load Data — 375 Super Mag · bullet ⌀, velocity, grain weights archived
- Secondary Monster Maximum Magnum (John Taffin) · year
- Secondary New Dan Wesson .375 SuperMags Announced — Dan Wesson Forum (archived), reproducing IHMSA's 'The Silhouette', Nov–Dec 1983 & Jan–Feb 1984 issues · year
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
