3d最准确计算下期和值

简介：The effective distance of the bird gun is one hundred steps, and the effective killing is fifty steps. If fired within fifty steps, it can penetrate iron armor. It sounds very powerful, but nowadays the main force of Jianlu soldiers wear three layers of heavy armor, and the bird gun is very powerful. It is difficult to cause fatal damage to them, and when Jianlu rushes closer, the gunmen can only abandon their armor.