Rifle · CIP
.300 CR
.300 CR is a rimless bottlenecked rifle cartridge of Belgium origin.
- Caliber
- 0.3091″ · 7.85 mm
- Introduced
- 2006
- Case
- Rimless
- Parent
- .308 Winchester
- Primary use
- Hunting
- Status
- Active
- Introduced
- 2006
- Type
- Rifle
- Origin
- Belgium
- Inventor
- FN Herstal (approx: maker of record)
- Manufacturer
- FN Herstal
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 53 gr H₂O
- Twist (typical)
- 1:12.0
- Primer
- Large Rifle
- Case type
- Rimless
- Max pressure
- 62,366 psi, CIP transducer
- Eff. range
- 300 yd
- Max range
- 1500 yd
- Recoil
- 14.4–16.5 ft·lb
Introduced by FN Herstal
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .300 CR, 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
- .308 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.
CIP TDCC · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.85 | 0.309 | ✓ |
| Neck ⌀ | 8.65 | 0.341 | ✓ |
| Shoulder ⌀ | 11.34 | 0.446 | ✓ |
| Shoulder angle | 30° | — | ≈ |
| Base ⌀ | 11.96 | 0.471 | ✓ |
| Rim ⌀ | 12.01 | 0.473 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.24 | 0.049 | ✓ |
| Neck length | 9.14 | 0.360 | ≈ |
| Case length | 51.06 | 2.010 | ✓ |
| Overall length | 71.00 | 2.795 | ✓ |
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 CR 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
Introduced around 2006.
FAQs
- What twist rate does .300 CR use?
- .300 CR typically uses a 1:12.0 twist rate.
- What bullet diameter is .300 CR?
- .300 CR uses a 0.3091″ (7.85 mm) diameter bullet.
- Is .300 CR still in production?
- .300 CR is active; typical availability is limited.
- What is .300 CR used for?
- .300 CR is primarily used for hunting.
- What is .300 CR based on?
- .300 CR is derived from the .308 Winchester case.
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 →
