结合实验对物理模型法和统计模型法进行了分析。在分析误差原因的基础上 ,采用量纲分析法对S.Tsai的物理模型法做了有效的修正 ,解决了摩擦阻力项系数的表征和求值方法 ,并提出了用修正的物理模型法计算弹道极限速度的步骤。同时 ,考虑了弹速对能量吸收的影响 ,对统计模型法进行了合理的修正。通过实验验证得出 ,修正后的 2种方法提高了弹道极限的估算精确度 The physical model method and statistical model method are analyzed with experiments. Based on the analysis of the cause of the error, the physical model method of S. Tsai was effectively corrected by the dimension analysis method to solve the characterization and evaluation method of the coefficient of frictional resistance. The method of modified physical model was proposed Ballistic speed limit steps. At the same time, the impact of the projectile velocity on energy absorption is considered, and the statistical model method is modified reasonably. Experimental results show that the two modified methods improve the accuracy of ballistic limit estimation