Underwood .429de 240gr Jhp - 20rd 10bx/cs

The Underwood .429de 240gr JHP ammunition represents purpose-built defensive firepower for serious shooters who demand reliable stopping performance. Chambered in the powerful .429 Detonics caliber, this cartridge delivers controlled penetration and consistent expansion—critical factors in law enforcement and civilian self-defense scenarios where shot placement and terminal performance are non-negotiable. Available in convenient 20-round boxes with 10 boxes per case, this ammunition supports high-volume training and duty rotation requirements.

Underwood Ammo engineers this load with a 240-grain jacketed hollow point projectile, a weight and design optimized for the .429de's ballistic envelope and designed to deliver rapid velocity degradation upon impact while maintaining structural integrity through intermediate barriers. The hollow point cavity initiates reliable expansion at defensive ranges, with the jacketed construction preventing fragmentation that could over-penetrate or create unpredictable wound channels. Factory loading ensures consistent powder charge and primer ignition, eliminating variables that compromise reliability during critical moments.

This ammunition suits operators running compact or full-size .429 Detonics platforms, including signature defensive pistols purpose-designed around this cartridge. Law enforcement agencies, tactical professionals, and armed citizens who've adopted the .429de for its higher velocity potential and expanded capacity relative to larger calibers will find Underwood's factory ammunition meets duty-grade standards. The 240gr JHP load balances recoil management with terminal effectiveness, enabling faster follow-up shots in high-stress encounters. Store in a cool, dry environment to maintain primer and powder integrity across extended duty cycles.