the final effect is that of deflection, deforming and ricochet of a projectile. when it hits a plate under a steep angle, its path might be curved, causing it to move through more armour – or it might bounce off entirely. also it can be bent, reducing its penetration. however, these effects are strongly dependent on the precise armour materials used and the qualities of the projectile hitting it: sloping might even lead to a better penetration. shaped charge warheads may fail to penetrate and even detonate when striking armour at a highly oblique angle.