Product DescriptionLehigh Defense Xtreme Defense Fluid Transfer Monolithic (FTM) bullets are lead-free, solid-copper projectiles designed to deliver deep, straight penetration and a large permanent wound cavity through progressive nose geometry and radial flutes. Built to help maintain performance even after passing through common barriers (such as heavy clothing or drywall), these .400" diameter 115-grain bullets are intended for 10mm Auto and .40 S&W applications and are supplied as reloading components (projectiles only) in a 100-count box.Product Highlights Lead-free, CNC-machined solid copper Fluid Transfer Monolithic (FTM) design Progressive nose geometry with radial flutes to promote deep, straight penetration and strong fluid displacement .400" diameter, 115-grain bullet weight for 10mm Auto and .40 S&W reloading Designed to help retain effectiveness after common intermediate barriers (e.g., heavy clothing/drywall) 100 bullets per box for high-volume loading and consistent component supplySpecs Brand: Lehigh Defense Manufacturer Part Number: 09400115SPFC UPC: 810025507725 Product Type: Reloading bullets / projectiles (not loaded ammunition) Series: Xtreme Defense Bullet Type/Style: Fluid Transfer Monolithic (FTM) Caliber Compatibility: .40 S&W / 10mm Auto Bullet Diameter: 0.400 in Bullet Weight: 115 gr Material: Copper (solid; lead-free) Quantity: 100 per box Ballistic Coefficient (G1): 0.121 Sectional Density: 0.103 Overall Length (OAL): 0.615 inDisclaimer: 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 products manufacturer.