HP38 is a spherical powder that is great for low velocity and mid-range target loads in the .38 Special, .44 Special, and 45 ACP. This high energy powder provides economy in loading.
I have loaded various handgun calibers (9mm, .38 spcl., .45ACP, etc.) with HP-38 for over 20 years and have never been disappointed in how it performs. Consistent and predictable. Exactly what I want in a powder.