DPX is a solid copper hollowpoint bullet that combines the best of the lightweight high speed JHPs and the heavy weight, deep penetrating JHPs. Recoil and recovery between shots are similar to the light weight rounds while soft tissue penetration is similar to the heavy weight rounds. Hard barrier penetration on auto glass and steel are no problem for this all copper hollowpoint round. You get superb performance on these hard barriers while still maintaining safe soft tissue penetration depths. The all copper bullet construction makes it conquer hard barriers like auto glass and steel while still maintaining its integrity. This is an optimum load for Law Enforcement.