Underwood 44mag 220gr - Xtreme Penetrator 20rd 10bx/cs

The Underwood 44mag 220gr Xtreme Penetrator is purpose-built ammunition engineered for deep, reliable penetration in defensive and hunting applications where barrier performance is non-negotiable. This 20-round per box offering represents serious stopping power for .44 Magnum platforms, delivering the velocity and construction required by law enforcement and experienced shooters who demand maximum terminal performance. Available in convenient 10-box cases, this ammunition is ideal for duty carry, personal protection, and field hunting scenarios where overpenetration control and consistent expansion are secondary to achieving deep target defeat.

Underwood's Xtreme Penetrator design features a 220-grain projectile specifically optimized for the .44 Magnum cartridge, delivering controlled velocity and consistent ballistics across chrono strings. The bullet construction emphasizes barrier-blind performance—penetrating intermediate barriers such as auto glass, steel, and heavy clothing without deflection or dramatic velocity loss. The 220-grain weight sits at the midpoint of .44 Magnum ballistic curves, offering a balance between penetration depth and manageable recoil, critical for rapid follow-up shots in high-stress encounters. Underwood's quality control in primer seating, powder charge, and case inspection ensures round-to-round reliability essential for duty ammunition.

This ammunition performs optimally in full-size .44 Magnum revolvers and levergun platforms where barrel length allows complete powder burn and consistent velocity development. Shooters using compensated revolvers or longer barrels will experience optimal performance; shorter snubby platforms remain viable but with slightly reduced velocity. The 10-box case format suits both duty stock rotation and field supply planning, making bulk purchase economical for agencies and serious practitioners. Reliable feeding and function across all modern .44 Magnum firearms—Ruger Redhawk, S&W Model 629, Taurus Raging Bull, and levergun platforms—is guaranteed with standard loading specifications.