C3175 Another 68 Mm

For a long time, every country's rifles are a mess. They each chose their own standards until the end of the World War. The 7.62 mm rifle became the mainstream along with the development of assault rifles. However... Due to the large caliber, the recoil and muzzle jumping problem was still not easy to solve.

Therefore, Y Country first raised the standard of 5.56 mm rifle bullets