Ballistic Characteristics of Low Penetration Bullet in Gelatin

In order to improve the bullet destruction, the design of the new type of bullet—shrapnel, which is based on the standard small bore bullet is proposed. The experiment of gelatin penetrated by shrapnel is performed to study the deformation of projectile’s head at different speed range and through the penetration depth of the projectile. The low penetration performance of the projectile is verified in this study. The results show that the degree of deformation of the projectile’s head is related to the speed, the higher the speed, the greater the warhead deformation. Warhead cracking into the "petal" can effectively reduce the bullet velocity, and increase the penetration resistance. The shrapnel does not perforate the gelatin at all the testing speeds, which proved that the projectile has good low penetration performance. A motion model of shrapnel is proposed, and the model can describe the dynamic process of shrapnel better.