FEDERAL Premium Personal Defense Hydra-Shok Deep .40 S&W 165Gr HP 20rd Box Handgun Ammo (P40HSD1)

Penetrates 15 inches in bare ballistics gel – the ideal depth according to modern FBI standards; Hits optimum penetration depths through barriers encountered in self-defense situations; Iconic center post design has been improved for better, more consistent expansion; Specially formulated propellant; Extremely reliable Federal primer