Lindcott Armory Rifle · CIP standardized
.400 H&H Magnum
Holland & Holland's powerful belted cartridge designed for dangerous game.
- Introduced
- 1905
- Type
- Rifle
- Origin
- United Kingdom
- Inventor
- Holland & Holland
- Manufacturer
- Holland & Holland
- Standard
- CIP standardized
- Status
- Limited
- Availability
- Limited
- Bullet ⌀
- 0.411″
- Case capacity
- 120 gr H₂O
- Twist
- 1:16
- Primer
- Boxer Large Rifle
- Case type
- Belted
- Max pressure
- 62,000 psi
- Eff. range
- 400 yd
- Recoil
- 60–80 ft·lb
Ballistics
- Velocity
- 2,100–2,200 fps
- Energy
- 3,916–4,298 ft·lb
- By real loads
- 2,100–2,400 fps · 11 loads
- Typical MSRP
- $2.20/rd · price history →
- Parent case
- —
Representative trajectory — modeled from a single velocity input, not a measured load. Real published loads span the "by real loads" range above.
Factory loads
In production — 11 active loads across 9 brands. Top 14 shown.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC | $/rd |
|---|---|---|---|---|---|---|---|
| Browning | BXS Straight Wall 270gr | 270 | Solid Copper | 2,400 | 3,453 | — | $2.20 |
| Kynoch | Big Game / Nitro Express | 400 | Metal Covered Soft Nose | 2,375 | 5,009 | — | $8.00 |
| Woodleigh | Heavy Grade | 400 | FMJ-BT | 2,150 | 4,105 | — | — |
| Norma | African PH | 400 | SP | 2,150 | 4,105 | — | $4.00 |
| RWS | Safari | 400 | SP | 2,150 | 4,105 | — | $1.80 |
| Hornady | DGX | 400 | DGX | 2,150 | 4,105 | — | $0.85 |
| Federal | Trophy Bonded | 400 | TBT | 2,150 | 4,105 | — | $0.85 |
| Kynoch | Safari | 400 | SP | 2,150 | 4,105 | — | $8.00 |
| Hornady | DGS FMJ Solid | 400 | FMJ Solid | 2,100 | 3,916 | — | $0.85 |
| A-Square | Dead Tough SP | 400 | Dead Tough SP | 2,100 | 3,916 | — | — |
| Northfork | FMJ Bonded Solid | 400 | FMJ Solid | 2,100 | 3,916 | — | — |
| Holland & Holland | FMJ Solid | 400 | FMJ Solid | 2,100 | 3,916 | — | — |
| Kynoch | FMJ Solid Service | 400 | FMJ Solid | 2,100 | 3,916 | — | $8.00 |
| Kynoch | SP Soft Nose | 400 | Soft Nose | 2,100 | 3,916 | — | $8.00 |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Reloading cost
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
Holland & Holland's powerful belted magnum developed in the early 20th century for African dangerous game. The parent case to many British magnums, the .400 H&H launched 400-grain bullets at 2,100–2,200 fps. Less common than .375 H&H but used on elephant and buffalo throughout Africa.
FAQs
- What twist rate does .400 H&H Magnum use?
- .400 H&H Magnum typically uses a 1:16 twist rate.
- What bullet diameter is .400 H&H Magnum?
- .400 H&H Magnum uses a 0.411″ (10.41 mm) diameter bullet.
- Is .400 H&H Magnum still in production?
- .400 H&H Magnum is limited; typical availability is limited.
- What is .400 H&H Magnum used for?
- .400 H&H Magnum is primarily used for hunting.
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 11 live factory loads; the trajectory is modeled (point-mass), not measured. Spotted an error? Report it →