Product DescriptionLehigh Defense Xtreme Defense (XD) Fluid Transfer Monolithic (FTM) bullets are lead-free, solid-copper projectiles designed to deliver deep, straight penetration while creating a large, permanent wound cavity without relying on expansion. The progressive nose geometry helps maintain performance through common barriers such as heavy clothing or drywall. This 150-grain .410-inch diameter projectile is intended for .41 Remington Magnum reloading and comes packaged 50 per box.Product Highlights Lead-free, solid copper Fluid Transfer Monolithic (FTM) design for consistent terminal performance Progressive nose geometry promotes deep, straight penetration and strong fluid displacement Barrier-tolerant performance compared to traditional hollow-point designs .410-inch diameter, 150-grain projectile optimized for .41 Remington Magnum reloading 50-count box is ideal for building a dedicated defensive/tactical handload supplySpecs Brand: Lehigh Defense Manufacturer Part Number: 09410150SP UPC: 810025507749 Caliber: .41 Remington Magnum Bullet Diameter: 0.410 in Bullet Weight: 150 gr Bullet Type: Fluid Transfer Monolithic (FTM) Core/Jacket Material: Solid copper (monolithic) Rounds per Box: 50 Intended Application: Defense/TacticalDisclaimer: 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.