In order to answer the questions of what is small arms firing table, what is its use and how to use it, a complete set of practical application methods of small arms firing table is put forward. The typical cases of firing table application in actual combat are analyzed, and the mechanism of trajectory deviation is analyzed. Based on the firing table data, the calculation and correction methods of firing data are given. The results show that the method provides an effective and feasible solution for improving the shooting skills of infantry fighters.