Rifle · CIP · Not SAAMI standardized · CIP standardizedObsolete
8x65mmR
8x65mmR is a rimmed bottlenecked rifle cartridge of Germany origin.
- Caliber
- 0.3185″ · 8.09 mm
- Introduced
- 1912
- Case
- Rimmed
- Parent
- 8x57mm IR
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1912
- Type
- Rifle
- Origin
- Germany
- Inventor
- Wilhelm Brenneke
- Manufacturer
- Brenneke
- Standard
- CIP · Not SAAMI standardized · CIP standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 70.7 gr H₂O
- Twist (typical)
- 1:9.4
- Primer
- Large Rifle Magnum
- Case type
- Rimmed
- Max pressure
- 56,565 psi, CIP transducer
- Eff. range
- 300 yd
- Max range
- 1500 yd
- Recoil
- 20.1–22 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 8x65mmR, 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
- 8x57mm IR
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 ⌀ | 8.09 | 0.319 | ✓ |
| Neck ⌀ | 8.86 | 0.349 | ✓ |
| Shoulder ⌀ | 10.85 | 0.427 | ✓ |
| Shoulder angle | 14° | — | ≈ |
| Base ⌀ | 11.95 | 0.470 | ✓ |
| Rim ⌀ | 13.32 | 0.524 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.40 | 0.055 | ✓ |
| Neck length | 8.91 | 0.351 | ≈ |
| Case length | 64.70 | 2.547 | ✓ |
| Overall length | 86.00 | 3.386 | ✓ |
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. 8x65mmR 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 8x65mmR is a bottleneck rimmed rifle cartridge originating in Germany.
FAQs
- What twist rate does 8x65mmR use?
- 8x65mmR typically uses a 1:9.4 twist rate.
- What bullet diameter is 8x65mmR?
- 8x65mmR uses a 0.3185″ (8.09 mm) diameter bullet.
- Is 8x65mmR still in production?
- 8x65mmR is discontinued; typical availability is rare.
- What is 8x65mmR used for?
- 8x65mmR is primarily used for hunting.
- What is 8x65mmR based on?
- 8x65mmR is derived from the 8x57mm IR 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 →
