PD is really for practice. From a former member who was quite knowledgable in the subject he recommended defensive ammo should come from a major manufacture such as Winchester Remington Federal as examples. He said the lines used to produce ammo from these mfgs have built in quality control that was not available from a smaller company.
Im not sure how Black Hills loads their ammo i think they have govt contracts.
This ammo was discussed recently its especially formulated for subs. I have no idea of their loading practices.
https://www.georgia-arms.com/38-spec...adcutter-20pk/
Our own @Lost River loads ammo that he sells he goes from mild to wild in the 38 spectrum.