Lehigh Defense Xtreme Penetrator 10mm Auto .400 140gr Fluid Transfer Monolithic Reloading Bullets - 100/Box

The Lehigh Defense Xtreme Penetrator is an all-copper, monolithic .400 caliber reloading bullet engineered for high-performance 10mm Auto and .40 S&W defensive loads. Each 140-grain projectile is a true one-piece Fluid Transfer Monolithic (FTM) bullet machined from solid, lead-free copper - no jacket, no separate core, and no exposed lead. The result is a uniform, heavy-for-caliber projectile built to drive straight, deep, consistent wound channels through soft tissue while staying intact.

Because the bullet is a single piece of copper, there is no risk of jacket-core separation on impact, making it a strong choice for self-defense handloads where reliable terminal performance matters. The projectile carries a ballistic coefficient of .147 and is rated for reliable expansion from handgun velocities typical of mid-range 10mm Auto and full-power .40 S&W loads - ideal for building custom defensive and wilderness-protection ammunition.

Each box contains 100 bullets, ready to be sized and loaded in standard .400 caliber reloading dies. These are the same Fluid Transfer Monolithic projectiles loaded by premium defensive ammunition makers, now available as a reloaders' component for handloaders crafting dedicated 10mm Auto and .40 S&W self-defense rounds. Bullet only - brass, primers, and powder are not included.