Rifle · Not SAAMI standardized · Not standardizedObsolete
.400/360 Nitro Express
Family of early British medium-bore Nitro Express cartridges in non-interchangeable maker variants (Purdey .367", Westley Richards/Evans/Fraser .358")..
- Caliber
- 0.358″ · 9.093 mm
- Introduced
- 1900
- Case
- Rimmed
- Primary use
- Hunting
- Status
- Obsolete
- Obsolete
- Obsolete
- Introduced
- 1900
- Type
- Rifle
- Origin
- United Kingdom
- Inventor
- Purdey / Westley Richards (variants)
- Manufacturer
- Purdey; Westley Richards
- Standard
- Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Obsolete
- Availability
- Collector
- Case capacity
- 74.8 gr H₂O
- Twist (typical)
- 1:16
- Primer
- Large Rifle
- Case type
- Rimmed
- Max pressure
- 31,900 psi, CIP transducer
- Eff. range
- 175 yd
- Max range
- 4850 yd
- Recoil
- 30.3–32.8 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .400/360 Nitro Express, 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 · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 9.09 | 0.358 | · |
| Neck ⌀ | 9.53 | 0.375 | · |
| Shoulder ⌀ | 11.10 | 0.437 | · |
| Shoulder angle | 15° | — | |
| Base ⌀ | 11.94 | 0.470 | ~ |
| Rim ⌀ | 14.99 | 0.590 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.76 | 0.069 | |
| Neck length | 9.39 | 0.370 | |
| Case length | 69.85 | 2.750 | · |
| Overall length | 91.19 | 3.590 | · |
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. .400/360 Nitro Express is highlighted below.
Missing a dimension for .400/360 Nitro Express? 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.
Connected reference
History
Purdey, Westley Richards, William Evans and Fraser versions were not dimensionally interchangeable — model as variants.
FAQs
- What twist rate does .400/360 Nitro Express use?
- .400/360 Nitro Express typically uses a 1:16 twist rate.
- What bullet diameter is .400/360 Nitro Express?
- .400/360 Nitro Express uses a 0.358″ (9.093 mm) diameter bullet.
- Is .400/360 Nitro Express still in production?
- .400/360 Nitro Express is obsolete; typical availability is collector.
- What is .400/360 Nitro Express used for?
- .400/360 Nitro Express is primarily used for hunting.
Sources & provenance
- Reference Gun Digest Books — Cartridges of the World (Frank C. Barnes) · velocity, grain weights, bullet ⌀, year
- Reference Sportsman's Vintage Press — African Rifles and Cartridges (John 'Pondoro' Taylor) · grain weights, velocity
- Secondary Cartridge Collector (cartridgecollector.net) — 400/360 Nitro Express 2 ¾" · year archived
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
