Underwood 357 Mag 158gr Xtp - Jhp 20rd 10bx/cs

The Underwood 357 Mag 158gr XTP JHP ammunition delivers proven stopping power for law enforcement, defensive carry, and serious sport shooters who demand reliable performance under critical conditions. Loaded with Underwood's quality control and designed around the proven XTP (eXtreme Terminal Performance) bullet platform, this load represents the tested choice of professionals and civilian shooters alike who rely on maximum effectiveness when it counts most. Each box contains 20 rounds, with 10 boxes per case for those who train regularly or maintain defensive stockpiles.

The 158-grain XTP hollow-point bullet is engineered for controlled expansion and deep penetration, initiating at impact and creating a consistent wound channel through intermediate barriers—a critical factor in real-world defensive scenarios involving clothing, vehicles, or other obstacles. Underwood Ammo loads this round to industry standards for revolver and semi-automatic platforms chambered in .357 Magnum, ensuring reliable feeding and consistent velocities across production runs. The hollow-point design expands predictably while maintaining structural integrity, reducing over-penetration and collateral risk compared to full metal jacket or solid rounds.

This ammunition is optimized for duty-grade revolvers, modern semi-automatic carbines and pistols marked for .357 Magnum, and personal defense applications where terminal performance is non-negotiable. Shooters transitioning from duty ammo to civilian platforms, or those seeking match-grade consistency in competitive revolver events, will appreciate the manufacturing standards Underwood maintains. The compact case configuration—measuring 2.2 x 1.75 x 2.7 inches and weighing 0.74 lbs per box—makes storage and transport practical for range training, duty carry, or emergency preparedness without compromising round count or accessibility.