Underwood 357 Sig 147gr Jhp - Xtp 20rd 10bx/cs

The Underwood 357 Sig 147gr JHP XTP 20rd ammunition is purpose-built for tactical professionals, law enforcement officers, and armed citizens who demand reliable, consistent performance in duty and defensive applications. This cartridge combines proven projectile technology with precision handloading standards to deliver the terminal performance and accuracy required in high-stakes scenarios where shot placement and bullet reliability are non-negotiable. Each case contains 20 rounds packaged in convenient 10-box cases (200 rounds total), making this an efficient choice for range training, qualification cycles, or duty carry rotation.

The 147-grain Jacketed Hollow Point (JHP) projectile—specifically the proven XTP (eXtreme Penetration) design from Hornady—is engineered for controlled expansion and consistent penetration depth. At 357 Sig velocities (typically 1,350+ fps from duty-length barrels), the XTP's dual-core construction resists fragmentation while delivering predictable wound channel characteristics suitable for barrier-blind performance. The jacketed construction ensures reliability across varied ammunition handling conditions and maintains consistent chamber pressures that support both semi-automatic function and chronograph-verified velocity spreads, critical factors for qualifying on duty courses of fire.

Law enforcement and military end-users select Underwood ammunition for its quality control standards and documented load data consistency. The 357 Sig platform remains the duty cartridge of choice for federal agencies and specialized tactical units seeking a mid-capacity round that bridges 9mm capacity with .40 S&W terminal ballistics. This ammunition cycles reliably in all modern 357 Sig-chambered platforms—SIG Sauer P226, Glock 33, and other factory and custom builds—and proves equally effective for training cycles where maintaining duty-identical ammunition performance ensures zero-to-duty confidence.