What is 8x56r?

The 8x56mmR cartridge was originally designed for use in the Mannlicher M1895 rifle used by the Austro-Hungarian Empire during World War I. The "R" in the name stands for rimmed, as the cartridge has a rimmed case. The 8x56mmR cartridge fires a bullet with a diameter of 8mm and a weight of 12.8 grams at a velocity of around 730 meters per second.

The 8x56mmR cartridge is known for its accuracy and stopping power, making it effective for hunting large game such as deer and wild boar. It is also sometimes used for long-range shooting and target shooting.

The 8x56mmR cartridge is no longer widely used, but it can still be found in some surplus ammunition markets and used by collectors and enthusiasts of vintage firearms.