Wilhelm Brenneke's powerful rimless 9.3mm magnum, delivering .375 H&H-class energy in a rimless case suited to standard-length bolt-actions. Widely used in continental Europe for dangerous game and large ungulates.
Type: Rifle
Introduced: 1927, Germany
Parent case: None
Standardization: CIP
Bullet diameter: 0.366" (9.3 mm)
Case length: 2.52" (64 mm)
Overall length: 3.267" (83 mm)
Max pressure: 63,000 PSI
Rim type: Rimless
Primer: Large Rifle Magnum
Typical twist rate: 1:14
Muzzle velocity: 2560–2750 fps
Muzzle energy: 3374–4800 ft-lbs
Effective range: 350 yd
Common bullet weights: 232, 250, 286 gr
Primary use: Hunting
Production status: Active
Also known as: 9.3x64
History: Developed by Wilhelm Brenneke in 1927 as a powerful hunting cartridge for German bolt-action rifles without the need for a full magnum-length action. The 9.3x64 delivers energy comparable to a .375 H&H with 286-grain bullets, making it suitable for dangerous game. More common in Germany and Austria than in the Anglophone world; primarily loaded by RWS and Norma.
Notable firearms: Mauser 98 sporters, Heym SR 30, Blaser R93
Similar cartridges: 9.3x62mm, 9.3x74mmR, .375 H&H Magnum