Product Description Winchester PDX1 Defender is engineered to maximize terminal ballistics using FBI test protocol standards, delivering dependable performance for personal defense. The bonded jacketed hollow point design uses Winchester&&';;s bonding process to weld the jacket to the lead core for improved penetration and controlled expansion (up to 1.5x), helping provide the stopping power you can rely on when it matters most. Product Highlights PDX1 Defender bonded jacketed hollow point for controlled expansion and weight retention Designed to meet FBI protocol performance goals for personal defense applications 147 grain 9mm Luger load optimized for consistent terminal performance Rated at approximately 1,000 feet per second muzzle velocity 20 rounds per box-ideal for carry rotation, testing, and duty use Specs Brand: Winchester Ammunition Caliber: 9mm Luger Bullet Weight: 147 grain Bullet Type: Bonded Jacketed Hollow Point (PDX1 Defender) Muzzle Velocity: 1000 ft/s Muzzle Energy: 326 ft-lbs Case Material: Brass Primer Style: Centerfire Application: Personal Defense Rounds Per Box: 20 Country of Manufacture: USA Manufacturer Part Number: S9MMPDB1 UPC: 020892217836 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.