Rifle · CIP

8x68mm S

8x68S8mm S8x68mmS

Powerful German magnum cartridge.

Caliber
0.3236″ · 8.22 mm
Introduced
1939
Case
Belted
Primary use
Hunting
Status
Active
Velocity2,900–3,150 fps
Energy3,700–4,200 ft·lb
Typical grains185 · 196 · 200 gr
Identity
Introduced
1939
Type
Rifle
Origin
Germany
Inventor
RWS
Manufacturer
RWS
Standard
CIP
Status
Active
Availability
Limited
Build
Case capacity
85 gr H₂O
Twist (typical)
1:10
Primer
Large Rifle Magnum
Case type
Belted
Pressure & range
Max pressure
63,817 psi
Eff. range
400 yd
Max range
4500 yd
Recoil
14–18 ft·lb

Ballistics

Representative trajectory · 100 yd zero0–800 yd
100 yd · zero0″−98″98″ drop @ 800 yd0400800Open in Ballistic Compare ↗
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

Best for HuntingWinchester Power Point185 gr · Power Point · 3,300 fpsBuy now →

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
Measuremmin
Bullet ⌀8.220.324
Neck ⌀9.140.360
Shoulder ⌀12.150.478
Shoulder angle14.5°
Base ⌀13.300.524
Rim ⌀13.000.512
Belt ⌀
Rim thickness1.400.055
Neck length8.500.335
Case length67.502.657
Overall length87.003.425

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 →.

BrandLoadGrainBulletFPSft·lbBC
WinchesterPower Point185Power Point3,3004,473
FederalPower-Shok185SP3,3004,473
RemingtonCore-Lokt185Core-Lokt3,3004,473
LapuaMega185Mega3,3004,473
HSMTrophy Gold185SP3,3004,473
LapuaNaturalis200Naturalis3,1504,406
FederalTrophy200Trophy Bonded3,1504,406
RemingtonCore-Lokt200Core-Lokt3,1504,406
WinchesterPower Point200Power Point3,1504,406
GECOSP Hunting187SP3,1174,034
RWSID Classic SP187ID Classic3,1174,034
Sellier & BellotSP Hunting196SP3,0514,050
NormaOryx SP196Oryx SP3,0514,050
NoslerTrophy Grade Partition 180gr180Partition3,0003,597
HornadyInterLock SP 196gr196InterLock SP2,9533,794

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 →

J.P. Sauer Sauer 101 7mm Rem Mag

Lineage

Immediate parent
Root — no documented parent
Direct descendants (1)
Family TreeOpen 8x68mm S in the interactive cartridge family tree

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 →