SKU: A148
UPC: 816874020651
MPN: 148
Underwood 357 Sig 125gr FMJ FN ammunition delivers reliable performance for law enforcement, defensive training, and competitive shooting applications. This 50-round box configuration provides shooters with consistent ballistics and precision engineering backed by Underwood Ammo's reputation for quality control. Whether you're running qualification courses, maintaining proficiency, or stocking duty ammunition, this load offers the dependability required in high-stakes environments.
The 125-grain full metal jacket flat nose projectile is engineered for consistent velocity and minimal bullet deformation, ensuring predictable energy transfer and reliable function through modern tactical platforms. FMJ construction prevents jacket separation and provides superior barrier penetration compared to hollow-point alternatives, making this load ideal for training regimens where round count and consistency matter. The flat nose profile reduces feeding malfunctions and improves accuracy by lowering jump distance in .357 Sig chambers, while the FN design minimizes ricochet concerns on indoor ranges—a critical consideration for law enforcement firearms instruction.
This ammunition is optimized for .357 Sig-chambered platforms including popular duty pistols from SIG Sauer, Speer, and legacy mil-spec derivatives. The 50-round per box format integrates seamlessly into duty gear organization, qualification schedules, and ammunition inventory management for agencies and serious practitioners. Bulk packaging (10 boxes per case) reduces reorder frequency and stabilizes training budgets for departments running high-volume courses.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.