A composite increase appears ground density can not meet the index requirements range correction projectile test, using theoretical analysis and empirical judgment, test data, comparative analysis and other methods, the analysis method of factors of range correction projectile ground density effect and influence factors of composite increase. The method for the compound extended range correction projectile ground density test results provide theoretical basis and technical support, through the extended range correction projectile ground density analysis of factors that affect the quantification of the composite can be determined, the influence factors on the test concentration, provide the basis for further improvement of product design. ect the quantification of the composite can be determined, the influence factors on the test concentration, provide the basis for further improvement of product design.