Powerful German magnum cartridge. The 'S' designation means modern bore diameter (.323) versus older .318 bore. Flat-shooting and hard-hitting.
Type: Rifle
Introduced: 1939, Germany
Parent case: None
Standardization: CIP
Bullet diameter: 0.323" (8.2 mm)
Case length: 2.677" (68 mm)
Overall length: 3.386" (86 mm)
Max pressure: 60,000 PSI
Rim type: Belted
Primer: Large Rifle Magnum
Typical twist rate: 1:10
Muzzle velocity: 2900–3150 fps
Muzzle energy: 3700–4200 ft-lbs
Effective range: 600 yd
Common bullet weights: 170, 196, 220 gr
Primary use: Hunting
Production status: Active
Also known as: 8x68S · 8mm S
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.
Notable firearms: Mauser M98, Sauer 202, Blaser R93, Custom European hunting rifles
Similar cartridges: .300 Winchester Magnum, .338 Winchester Magnum