Buy Underwood Ammo Online

Underwood Ammo is a highly respected American manufacturer specializing in premium, high-performance ammunition for self-defense, hunting, and tactical applications. Known for pushing the boundaries of ballistic capability, the company loads its cartridges to maximum safe SAAMI pressure limits, delivering significantly higher velocities and flatter trajectories than standard factory loads. By utilizing top-tier components, including nickel-plated brass cases and advanced projectiles from industry leaders like Lehigh Defense, Hornady, and Nosler, Underwood ensures exceptional reliability and consistency. Their diverse product lineup spans specialized handgun and rifle calibers, offering shooters unmatched terminal ballistics and barrier-blind performance when it matters most.

Founded in 2013 by Kevin Underwood in Sparta, Illinois, the company was born out of a desire to provide shooters with higher-quality, cleaner-burning, and more powerful ammunition at a reasonable price. Operating as a family-owned business, Underwood Ammo quickly built a dedicated following among defensive shooters, hunters, and outdoor enthusiasts by pushing the boundaries of ballistic capability. In late 2025, the company announced a major expansion, investing $41 million to build a new state-of-the-art manufacturing facility in Effingham County, Georgia, to support its long-term growth.

Underwood Ammo is widely recognized for its innovative product lines, including the solid-copper Lehigh Defense Xtreme Defender, Xtreme Penetrator, and Controlled Chaos series, as well as their hard-cast lead and bonded jacketed hollow point loads.

Shooters choose Underwood Ammo for its uncompromising commitment to maximizing ballistic performance, offering ultra-reliable, high-velocity loads that deliver devastating terminal energy and superior accuracy.