Nosler Assured Stopping Power, 9MM, 147 Grain, Jacketed Hollow Point, 20 Round Box 51290 Nosler Assured Stopping Power (ASP) ammunition line combines match-grade accuracy with a reliable, effective, hollow-point bullet. Evolving from the Match Grade ammunition line, ASP ammunition is loaded with the same quality and attention to detail that Match Grade users have come to expect, with the addition of an expanding hollow-point bullet designed specifically for duty and defensive use. Loaded in Nosler headstamped brass, and utilizing quality components throughout, the ASP ammunition can be relied upon to perform in a wide variety of applications and ranges. Equally at home on duty or in a defensive role, Law Enforcement professionals and civilians alike can rest assured that ASP ammunition will perform when needed.