Pepper-ball rounds are really hard plastic spheres stuffed with PAVA (pepper) powder. In the late nineties and early 2000s, law enforcement started to adopt a different pepper spray supply program according to the products used in paintball. A specialised paintball, named a “pepperball”, is filled with liquid or powdered capsaicin. https://5-45-bulk-ammo88776.eveowiki.com/1779719/45_gap_ammo_secrets