Product DescriptionBring your lever gun out of retirement and experience the on-game performance of Barnes Pioneer ammunition. Built for reliable feeding and cycling in lever guns with tubular magazines and in revolvers, this .357 Magnum load features a 140-grain all-copper TSX flat nose bullet engineered for massive expansion, strong weight retention, and deeper penetration. Each box includes 20 centerfire cartridges designed for fast follow-up shots and dependable terminal performance.Product Highlights Purpose-built for lever guns and revolvers for smooth cycling from magazine to chamber 140-grain TSX (Triple-Shock X) flat nose bullet designed for expansion and penetration All-copper bullet construction for weight retention and consistent terminal performance .357 Magnum centerfire cartridges ideal for hunting/medium-game applications Convenient 20-round box for range time and field carrySpecs Brand: Barnes Product Line: Pioneer Caliber: .357 Magnum Bullet Weight: 140 grain Bullet Type: Flat Nose (FN) Bullet Construction: TSX (all-copper) Cartridge Type: Centerfire Rounds Per Box: 20 Cartridge Case Material: Brass UPC: 716876143580 Manufacturer Part Number: 32141Disclaimer: 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.