Rifle · Proprietary · Not SAAMI standardized · Not standardizedObsolete
.600/577 Nitro Express
Transitional British Nitro Express cartridge bridging the .577 and .600 NE, used in early high-power double rifles..
- Caliber
- 0.584″ · 14.834 mm
- Introduced
- 1929
- Case
- Rimmed
- Parent
- .600 Nitro Express
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1929
- Type
- Rifle
- Origin
- United Kingdom
- Inventor
- Holland & Holland
- Manufacturer
- Holland & Holland
- Standard
- Proprietary · Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 190.5 gr H₂O
- Twist (typical)
- 1:16
- Primer
- Boxer Large Rifle
- Case type
- Rimmed
- Max pressure
- 35,515 psi, CIP transducer
- Eff. range
- 100 yd
- Max range
- 4800 yd
- Recoil
- 231.5 ft·lb
Introduced by Holland & Holland
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .600/577 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
- .600 Nitro Express
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 ⌀ | 14.83 | 0.584 | ~ |
| Neck ⌀ | 15.57 | 0.613 | · |
| Shoulder ⌀ | 16.41 | 0.646 | · |
| Shoulder angle | 15° | — | |
| Base ⌀ | 17.70 | 0.697 | · |
| Rim ⌀ | 20.57 | 0.810 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 2.40 | 0.094 | |
| Neck length | 15.31 | 0.603 | |
| Case length | 76.20 | 3.000 | · |
| Overall length | 97.28 | 3.830 | ~ |
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. .600/577 Nitro Express is highlighted below.
Missing a dimension for .600/577 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.
Lineage
Connected reference
History
An early transitional cartridge from the development period of Nitro Express cartridges, the .600/577 NE used the enormous .600 NE case necked down to .577 caliber. It predates the standardization of the .600 NE as the definitive large-bore Nitro Express and is rare; encountered mainly in early 20th-century double rifles.
FAQs
- What twist rate does .600/577 Nitro Express use?
- .600/577 Nitro Express typically uses a 1:16 twist rate.
- What bullet diameter is .600/577 Nitro Express?
- .600/577 Nitro Express uses a 0.584″ (14.834 mm) diameter bullet.
- Is .600/577 Nitro Express still in production?
- .600/577 Nitro Express is discontinued; typical availability is rare.
- What is .600/577 Nitro Express used for?
- .600/577 Nitro Express is primarily used for hunting.
- What is .600/577 Nitro Express based on?
- .600/577 Nitro Express is derived from the .600 Nitro Express case.
Sources & provenance
- Standard C.I.P. — TDCC Tab II — 577 N.E. 3" (nitro sibling, same bore) · bullet ⌀ archived
- Secondary Wikipedia — .600/577 Rewa · grain weights, bullet ⌀, velocity 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 →
