Through this scientific research work, the types and kinds of explosive substances, the processes related to them and various areas of application are presented. We will talk about the military application of cumulative charges, especially explosively formed projectiles and the influential factors of the effect of projectile. Since shaped charges in all forms are used in the field of defense, knowledge of the characteristics, performance and the possibility of applying individual types of charges is of particular importance both in the context of theoretical analysis of projectile performance and in the practical application itself. Based on the test results, the interdependencies of individual shaped charge factors were determined and it was explained how the correct choice of factors can result in an optimally constructed explosively formed projectile. The aim of this paper is to find the optimal parameters necessary to achieve the desired effect and performance of the explosively formed projectile, and to confirm the formation and action of the projectile according to the Hopkinson and Misznay - Shardin effect. In order to be able to conduct this performance study, six practical tests were conducted on the test field site of RGNF Ljubeščica.