Rifle · CIP · Not SAAMI standardized · CIP standardizedObsolete
.300/295 Rook
.300/295 Rook is a rimmed straight-walled rifle cartridge of United Kingdom origin.
- Caliber
- 0.3012″ · 7.65 mm
- Introduced
- 1874
- Case
- Rimmed
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1874
- Type
- Rifle
- Origin
- United Kingdom
- Inventor
- Various British
- Manufacturer
- Eley Brothers; Kynoch
- Standard
- CIP · Not SAAMI standardized · CIP standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 17.9 gr H₂O
- Twist (typical)
- 1:20.0
- Primer
- Small Rifle
- Case type
- Rimmed
- Max pressure
- 17,405 psi, CIP transducer
- Eff. range
- 250 yd
- Max range
- 1250 yd
- Recoil
- 1.5–3.6 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .300/295 Rook, 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.
CIP TDCC · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.65 | 0.301 | ✓ |
| Neck ⌀ | 8.08 | 0.318 | |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 8.10 | 0.319 | ✓ |
| Rim ⌀ | 9.52 | 0.375 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.14 | 0.045 | ✓ |
| Neck length | n/a | ||
| Case length | 29.97 | 1.180 | ✓ |
| Overall length | 36.83 | 1.450 | ✓ |
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. .300/295 Rook is highlighted below.
Missing a dimension for .300/295 Rook? 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
The .300/295 Rook is a straight rimmed rifle cartridge originating in United Kingdom.
FAQs
- What twist rate does .300/295 Rook use?
- .300/295 Rook typically uses a 1:20.0 twist rate.
- What bullet diameter is .300/295 Rook?
- .300/295 Rook uses a 0.3012″ (7.65 mm) diameter bullet.
- Is .300/295 Rook still in production?
- .300/295 Rook is discontinued; typical availability is rare.
- What is .300/295 Rook used for?
- .300/295 Rook is primarily used for hunting.
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 →
