Rifle · CIP
6.5x50mmR
6.5x50mmR is a rimmed bottlenecked rifle cartridge of Germany origin.
- Caliber
- 0.2638″ · 6.7 mm
- Introduced
- 1897
- Case
- Rimmed
- Parent
- 6.5x50mm Arisaka
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1897
- Type
- Rifle
- Origin
- Germany
- Inventor
- RWS (approx: maker of record)
- Manufacturer
- RWS
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 38 gr H₂O
- Twist (typical)
- 1:9.0
- Primer
- Small Rifle
- Case type
- Rimmed
- Max pressure
- 52,939 psi, CIP transducer
- Eff. range
- 300 yd
- Max range
- 1500 yd
- Recoil
- 4.9–6 ft·lb
Introduced by RWS
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 6.5x50mmR, 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
- 6.5x50mm Arisaka
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 ⌀ | 6.70 | 0.264 | ✓ |
| Neck ⌀ | 7.28 | 0.287 | ✓ |
| Shoulder ⌀ | 9.40 | 0.370 | ✓ |
| Shoulder angle | 40.1° | — | ≈ |
| Base ⌀ | 9.59 | 0.378 | ✓ |
| Rim ⌀ | 10.90 | 0.429 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.40 | 0.055 | ✓ |
| Neck length | 6.27 | 0.247 | ≈ |
| Case length | 49.50 | 1.949 | ✓ |
| Overall length | 68.00 | 2.677 | ✓ |
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. 6.5x50mmR 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 1897, derived from the 6.5x50mm Arisaka.
FAQs
- What twist rate does 6.5x50mmR use?
- 6.5x50mmR typically uses a 1:9.0 twist rate.
- What bullet diameter is 6.5x50mmR?
- 6.5x50mmR uses a 0.2638″ (6.7 mm) diameter bullet.
- Is 6.5x50mmR still in production?
- 6.5x50mmR is active; typical availability is limited.
- What is 6.5x50mmR used for?
- 6.5x50mmR is primarily used for hunting.
- What is 6.5x50mmR based on?
- 6.5x50mmR is derived from the 6.5x50mm Arisaka 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 →
