What is 7.7 jap?

The 7.7 Japanese, also known as the 7.7x58mm Arisaka, is a rifle cartridge developed by Japan in the early 20th century. It was used in the Type 99 and Type 97 rifles during World War II.

The cartridge features a 7.7mm bullet with a rimless, bottlenecked case that is 58mm in length. It was designed to be more powerful than the earlier 6.5mm cartridge used by the Japanese military.

The 7.7 Japanese cartridge had a reputation for being effective in combat, with good stopping power and accuracy. However, it was later surpassed by other rifle cartridges with better ballistics and performance.

Today, the 7.7 Japanese cartridge is considered obsolete, but it is still used by some collectors and enthusiasts who own rifles chambered for this cartridge. Ammunition can be difficult to find, but some specialty manufacturers still produce it for those who wish to shoot these historic rifles.