《明史·志·卷六十八》
远处能射到，将官要求一百六十步、士兵要求一百二十步；近处能够射中，要求五十步。
远可到，将弁百六十步、军士百二十步；近可中，五十步。
The requirement for long-distance shooting is to shoot to a distance of 160 steps for officers and 120 steps for soldiers; the requirement for short-distance shooting is to shoot to a distance of 50 steps.