Shock reverberation experiments were performed on electrically biased specimens of the slim‐loop‐ferroelectric ceramic (Pb0.715Ba0.285)0.991(Zr0.707Ti0.293)0.981Bi0.019O3, and a simple model was fitted to the observed electrical response. It was found that the material could be described as a linear reversible dielectric and that the reciprocal of the permittivity is linearly related to the shock stress.