Sig Sauer E9MMA136520: V-Crown Jacketed Hollow Point bullets are designed to provide superior accuracy, reliability, and performance in a personal defense round. The Sig V-Crown stacked hollow point design provides a smaller, additional hollow point cavity behind the main cavity. This design, along with V-shaped jacket skives and scores, provides controlled, uniform expansion at all effective distances and velocities. The bullet has a unique toothed cannelure halfway up the shank to more effectively lock the jacket and core which provides exceptional structural integrity in a jacketed design, ensuring maximum weight retention and outstanding terminal performance. Brass cases are coated with Ducta-Bright 7A for enhanced lubricity, superior corrosion resistance, and reliable feeding and extraction.