What is 7.7jap?

The 7.7 Jap or 7.7x58mm Arisaka is a rifle cartridge that was developed by the Imperial Japanese Army in the early 20th century. It was used in a variety of Japanese military rifles, including the Type 92 Heavy Machine Gun and the Type 99 rifle. The cartridge is similar in size and power to the .303 British cartridge, which it was often compared to during its development. The 7.7 Jap was known for its accuracy and reliability, and it was used extensively by the Japanese military during World War II. It was also used by some Korean and Chinese forces during the Korean War. Today, the cartridge is still used by some hunters and target shooters, but it is not as popular as other cartridges of similar size and power.