Product Description Winchester Defender ammunition is engineered to maximize terminal performance under FBI test protocol standards, delivering the stopping power and reliability needed for personal defense. This .40 S&W load features a 180-grain bonded jacketed hollow point design built to promote consistent penetration and expansion. Winchester&';s innovative bonding process helps keep the jacket and lead core together for dependable performance when the stakes are high. Product Highlights Bonded jacketed hollow point construction designed for controlled expansion and improved penetration Developed to meet FBI protocol performance objectives for personal protection 180-grain .40 S&W defensive load optimized for reliable terminal ballistics Rated at 1025 fps muzzle velocity and 420 ft-lbs of muzzle energy (manufacturer/retailer-published ballistics) Convenient packaging: 20 rounds per box; 10 boxes per case (200 rounds) Specs Brand: Winchester Ammo Product Line: Defender Caliber: .40 S&W Bullet Weight: 180 gr Bullet Type: Bonded Jacketed Hollow Point Rounds Per Box: 20 Case Pack: 10 boxes (200 rounds) Muzzle Velocity: 1025 fps Muzzle Energy: 420 ft-lbs Country of Origin: USA UPC: 020892217874 Manufacturer Part Number: S40SWPDB1 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.