9.3×64mm Brenneke
cartridge
The 9.3×64mm Brenneke (designated as the 9,3 x 64 Brenneke by the C.I.P.) is a rimless bottlenecked centerfire rifle cartridge designed in 1927 by German gunmaker Wilhelm Brenneke. It is suitable for hunting medium to large game animals in Africa, Asia, Europe, and North America.
The 9.3×64mm Brenneke was designed as a medium bore big-game cartridge for standard-sized Mauser 98 bolt-action rifles.
History
One of the most successful cartridge designs of the famous German gun and ammunition designer Wilhelm Brenneke was the 9.3×64mm Brenneke. He designed this cartridge ex novo (the 9.3×64mm Brenneke has no other cartridge as a parent case) and introduced it commercially in 1927. This big-game cartridge is the most powerful cartridge he designed. The 9.3×64mm Brenneke was designed to have the largest possible case capacity without any shape or dimensional drawbacks that would hamper its chambering and perfect functioning in Mauser Gewehr 98 rifles that were then standard issue in the German military and were also popular sporting rifles.
For functioning in standard-sized Mauser 98 rifles besides common rechambering alterations, the internal magazine boxes have to be adapted by a competent gunsmith to function properly with 9.3×64mm Brenneke cartridges since the cases are longer and have a larger diameter than the 7.92×57mm Mauser military cartridges. Short sub 84 mm (3.31 in) overall length 9.3×64mm Brenneke loads using relatively blunt nose bullets (or later short ogive cone points), should fit in the standard-sized M98 action without any need for magazine length alterations or milling of the action behind the lower lug rebate, but such incorrectly altered standard-sized M98 action rifles can not handle 85.6 mm (3.37 in) long full length 9.3×64mm Brenneke loads.
The widespread availability of standard-size Mauser 98 rifles in central Europe and the fact that the .375 H&H Magnum cartridge and its necked-down version the .300 H&H Magnum with approximately 72.4 mm case length and 91.4 mm (3.60 in) overall length were too long to fit in standard-sized Mauser 98 bolt-action rifles made the shorter 9.3×64mm Brenneke an interesting chambering option for European big-game hunters.
“9.3×64mm Brenneke” enters the record as cartridge. Crown Archives preserves that source wording while asking what 64mm, Brenneke and cartridge can confirm, complicate or overturn.
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