Underwood 10mm Auto 135gr Jhp - 20rd 10bx/cs

Underwood 10mm Auto 135gr JHP ammunition delivers the stopping power and velocity needed for defensive carry, competition shooting, and duty applications where maximum terminal performance matters. Purpose-built for shooters who demand premium factory loads, this 20-round box represents serious ammunition engineering from a manufacturer with deep roots in professional and tactical communities. The 10mm platform continues to gain traction among law enforcement agencies and armed professionals seeking a flat-shooting, hard-hitting cartridge that bridges the gap between 9mm and magnum performance.

Each round fires a 135-grain jacketed hollow point projectile at 1,600 feet per second, generating 767 foot-pounds of muzzle energy—ballistics that consistently produce reliable expansion and deep penetration through barriers. The nickel-plated brass casing resists corrosion and provides superior feeding reliability in semi-automatic platforms, while the hollow point design ensures controlled expansion for consistent wound channels. Underwood's quality control and precision loading mean each round maintains chronograph-tight velocity spreads, critical for shooters who demand predictable point-of-aim shift and energy retention downrange.

This load suits 10mm Auto pistols from all major manufacturers—1911 platforms, polymer doublestack designs, and specialty competition frames—making it a go-to choice for training cycles, qualification courses, and carry rotation. The nickel-plated cases reload cleanly for reloaders seeking consistency, and the 135-grain weight provides an ideal balance between velocity and recoil management, allowing faster follow-up shots without sacrificing terminal ballistics. Packaged in 20-round boxes with 10 boxes per case, this ammunition meets the needs of serious shooters building reliable ammunition stockpiles for duty use or high-volume training programs.