Product Description Winchester USA Ready Defense is a select-grade personal defense ammunition designed to deliver a dependable balance of stopping power, penetration, and reliable expansion when it matters most. This .40 S&W load features a Hex-Vent hollow point design with a rigid insert to help protect the cavity from obstruction and promote consistent expansion, paired with match-grade primers and lot-controlled production for trusted performance. Product Highlights USA Ready Defense-grade .40 S&W ammunition engineered for personal protection Hex-Vent rigid insert helps resist hollow-point obstruction and supports reliable expansion Match-grade primer for consistent ignition and dependable performance Lot-controlled manufacturing for added quality consistency 20-round box-ideal for carry rotation, function testing, and defensive readiness Specs Brand: Winchester Ammunition Line/Model: USA Ready Defense Cartridge: .40 S&W Bullet Type: Hex-Vent Hollow Point (HX HP) Bullet Weight: 155 grain Rounds per Box: 20 Country of Manufacture: USA Manufacturer Part Number: RED40HP UPC: 020892230071 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.