C1564 Medium Caliber Machine Guns Were Useless

It used to take nearly ten years, but now... This was what Qin Guan proposed. The 6.8mm bullet only took half a day, and the test shot continued. After all kinds of assessments were completed, all the experts were full of praise for this kind of bullet. Compared to the 7.62mm bullet, of course it was lighter. It was easy to carry, but in terms of power, it was much higher than the 5.56 mm bullet