Rifle · CIP
8.5x63mm
8.5x63mm is a rimless bottlenecked rifle cartridge of Germany origin.
- Caliber
- 0.3382″ · 8.59 mm
- Introduced
- 1985
- Case
- Rimless
- Parent
- .280 Remington
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1985
- Type
- Rifle
- Origin
- Germany
- Inventor
- Werner Reb
- Manufacturer
- Werner Reb
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 74 gr H₂O
- Twist (typical)
- 1:10.0
- Primer
- Large Rifle Magnum
- Case type
- Rimless
- Max pressure
- 62,366 psi, CIP transducer
- Eff. range
- 250 yd
- Max range
- 1250 yd
- Recoil
- 22.1 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 8.5x63mm, 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
- .280 Remington
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 ⌀ | 8.59 | 0.338 | ✓ |
| Neck ⌀ | 9.33 | 0.367 | ✓ |
| Shoulder ⌀ | 11.47 | 0.452 | ✓ |
| Shoulder angle | 40.1° | — | ≈ |
| Base ⌀ | 11.89 | 0.468 | ✓ |
| Rim ⌀ | 12.01 | 0.473 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.24 | 0.049 | ✓ |
| Neck length | 8.31 | 0.327 | ≈ |
| Case length | 63.00 | 2.480 | ✓ |
| Overall length | 84.00 | 3.307 | ✓ |
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. 8.5x63mm 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
The 8.5x63mm is a bottleneck rimless rifle cartridge originating in Germany.
FAQs
- What twist rate does 8.5x63mm use?
- 8.5x63mm typically uses a 1:10.0 twist rate.
- What bullet diameter is 8.5x63mm?
- 8.5x63mm uses a 0.3382″ (8.59 mm) diameter bullet.
- Is 8.5x63mm still in production?
- 8.5x63mm is active; typical availability is limited.
- What is 8.5x63mm used for?
- 8.5x63mm is primarily used for hunting.
- What is 8.5x63mm based on?
- 8.5x63mm is derived from the .280 Remington 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 →
