8x50R

8x50R is a rimmed rifle cartridge developed in Austria in the late 19th century. It was primarily used by the Austro-Hungarian Empire in their Mannlicher rifles. The designation "8x50R" indicates the bore diameter of approximately 8 millimeters and a cartridge case length of 50 millimeters, with the "R" signifying a rimmed case.

This cartridge was designed for military service and saw extensive use before and during World War I. It was known for its relatively powerful performance for its time, offering good accuracy and stopping power. Over time, advancements in cartridge technology led to its obsolescence.

While no longer a standard military round, 8x50R ammunition is still sought after by collectors and enthusiasts of historical firearms. It is typically found in antique rifles that were originally chambered for it. Reloading components are available for those who wish to fire these older firearms, though caution and proper knowledge are advised due to the age of the equipment. The cartridge's historical significance lies in its association with a major European military power and its role in conflicts of the early 20th century.