8 x 64 Load Data

The 8x64 caliber, often referred to as the 8x64mm S, stands as a significant European rifle cartridge with a storied history dating back to the early twentieth century. Developed in Germany in 1912 by Wilhelm Brenneke, the 8x64 was designed to provide hunters and marksmen with greater range, power, and accuracy than the widely issued 8x57mm Mauser. The longer, more capacious case of the 8x64 allowed for increased powder loads, pushing velocities and terminal performance to a new tier for non-military cartridges of its day. Although it was not adopted officially by the German military, the 8x64mm S quickly gained traction among civilian shooters and big game hunters on the European continent thanks to its versatility and effectiveness, earning a strong reputation that has carried into the modern era.

When it comes to applications, the 8x64 excels as a high-powered sporting cartridge. Its robust case design allows it to chamber reliably in most standard Mauser 98 actions with only slight modification. The round’s significant case capacity, paired with its ability to handle heavy projectiles, offers reloaders a platform renowned for ballistic efficiency and extended range shooting. Historically, it became a favorite choice for stalking large game in the forests and mountains of central and eastern Europe. While less commonly seen outside Europe compared to the more ubiquitous 30-06 Springfield, the 8x64 remains a sought-after option for competitive shooters and discerning hunters looking for a blend of flat trajectory, stopping power, and manageable recoil.

Regarding target species, the 8x64 is especially well-suited for medium to large European game. It is commonly employed against red deer, wild boar, mouflon, and even the elusive European brown bear, thanks to its potent combination of velocity and bullet weight. The cartridge’s capability to deliver deep penetration and broad wound channels makes it a reliable choice for ethical hunting, even at extended ranges. Seasoned reloaders and hunters appreciate its capacity to cleanly dispatch upland game as well as heavy, thick-skinned quarry, making it a true all-around caliber for the diversified European hunting landscape.

Typical bullet weights for the 8x64 range from 150 grains (9.7 grams) for lighter, faster loads up to 200 grains (13 grams) and occasionally heavier for maximum energy transfer on large game. Commonly available bullets are in the 170–196 grain (11–12.7 gram) range, providing an excellent balance of sectional density and ballistic coefficient for both open terrain and woodland shooting. The caliber operates at relatively high pressures, which translates to flat trajectories and impressive retained energy downrange. Case length is 64mm with a standard .323" (8.2mm) bullet diameter, contributing to its robust ballistics. For reloaders, the 8x64’s generous case capacity enables fine-tuning each load for specific game or shooting scenarios, allowing experienced handloaders to realize the full potential of this classic, high-performance European cartridge.