Rifle · CIP
8x68mm S
Powerful German magnum cartridge.
- Caliber
- 0.3236″ · 8.22 mm
- Introduced
- 1939
- Case
- Belted
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1939
- Type
- Rifle
- Origin
- Germany
- Inventor
- RWS
- Manufacturer
- RWS
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 85 gr H₂O
- Twist (typical)
- 1:10
- Primer
- Large Rifle Magnum
- Case type
- Belted
- Max pressure
- 63,817 psi
- Eff. range
- 400 yd
- Max range
- 4500 yd
- Recoil
- 14–18 ft·lb
Ballistics
- By real loads
- 2,953–3,300 fps · 22 loads
- Parent case
- —
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open 8x68mm S ammunition at Rivertown Munitions.
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 ⌀ | 8.22 | 0.324 | ✓ |
| Neck ⌀ | 9.14 | 0.360 | ✓ |
| Shoulder ⌀ | 12.15 | 0.478 | ✓ |
| Shoulder angle | 14.5° | — | ✓ |
| Base ⌀ | 13.30 | 0.524 | ✓ |
| Rim ⌀ | 13.00 | 0.512 | ✓ |
| Belt ⌀ | — | — | |
| Rim thickness | 1.40 | 0.055 | ✓ |
| Neck length | 8.50 | 0.335 | ≈ |
| Case length | 67.50 | 2.657 | ✓ |
| Overall length | 87.00 | 3.425 | ✓ |
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. 8x68mm S is highlighted below.
Factory loads
In production — 22 active loads across 13 brands. Top 15 shown · see all 22 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| Winchester | Power Point | 185 | Power Point | 3,300 | 4,473 | — |
| Federal | Power-Shok | 185 | SP | 3,300 | 4,473 | — |
| Remington | Core-Lokt | 185 | Core-Lokt | 3,300 | 4,473 | — |
| Lapua | Mega | 185 | Mega | 3,300 | 4,473 | — |
| HSM | Trophy Gold | 185 | SP | 3,300 | 4,473 | — |
| Lapua | Naturalis | 200 | Naturalis | 3,150 | 4,406 | — |
| Federal | Trophy | 200 | Trophy Bonded | 3,150 | 4,406 | — |
| Remington | Core-Lokt | 200 | Core-Lokt | 3,150 | 4,406 | — |
| Winchester | Power Point | 200 | Power Point | 3,150 | 4,406 | — |
| GECO | SP Hunting | 187 | SP | 3,117 | 4,034 | — |
| RWS | ID Classic SP | 187 | ID Classic | 3,117 | 4,034 | — |
| Sellier & Bellot | SP Hunting | 196 | SP | 3,051 | 4,050 | — |
| Norma | Oryx SP | 196 | Oryx SP | 3,051 | 4,050 | — |
| Nosler | Trophy Grade Partition 180gr | 180 | Partition | 3,000 | 3,597 | — |
| Hornady | InterLock SP 196gr | 196 | InterLock SP | 2,953 | 3,794 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
2 reloading powders listed for 8x68mm S, fastest to slowest. Cross-reference in the finder →
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.
Firearms chambered in 8x68mm S
1 model in the database chamber 8x68mm S. Browse all →
Lineage
Connected reference
History
Developed by RWS in 1939 as a magnum hunting cartridge. Based on .375 H&H case shortened and rebated rim. The 'S' (schweres) designation distinguishes it from older 8x68mm that used .318 bore. Never achieved wide popularity outside Germany but remains respected for its power and flat trajectory.
FAQs
- What twist rate does 8x68mm S use?
- 8x68mm S typically uses a 1:10 twist rate.
- What bullet diameter is 8x68mm S?
- 8x68mm S uses a 0.3236″ (8.22 mm) diameter bullet.
- Is 8x68mm S still in production?
- 8x68mm S is active; typical availability is limited.
- What is 8x68mm S used for?
- 8x68mm S is primarily used for hunting.
- What are the best powders for 8x68mm S?
- Reloading powders commonly listed for 8x68mm S include N170, Reloader 25.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 22 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
Lindcott Armory