Engineered to maximize terminal ballistics as defined by FBI test protocol, Winchester’s PDX1 Defender provides maximum stopping power for the ultimate in defensive style ammunition. Innovative bonding process welds the jacket to the lead core for improved penetration, 1.5x expansion, and the proven performance you rely on when the stakes are high.FeaturesProprietary Bonding Process: Welds jacket to lead for improved penetration and weight retentionHollow Point: Expands to up to 1.5x the original diameter resulting in maximum stopping powerNotched Jacket: Preprogrammed to expand into six uniform segments for consistent tactical performanceCorrosion Resistant Nickel Plated CaseLow FlashSpecificationsCaliber: 40 Smith & WessonBox of 20Type: Bonded Jacketed Hollow-PointGrain: 165Muzzle Velocity: 1140 fpsVelocity @ 5 Yards: 1129 fpsVelocity @ 25 Yards: 1091End of lstUrls_of_images_in_html_description