Underwood Ammo Combines Their Precision Manufacturing with Lehigh Xtreme Penetrator Projectiles

Underwood Ammo produces this ammunition with Lehigh Defense Xtreme Penetrator solid copper projectiles. This round is machined from solid copper and features a unique nose that maximizes penetration and facilitates consistent and reliable magazine feeding. Because they contain no lead, Xtreme Penetrator bullets are great for the environment, but really bad for the target. They feature a unique nose that increases the hydraulic velocity creating high pressure spikes and resulting in a larger permanent wound column and over twice the penetration than most expanding bullets. When combined with Underwood's carefully engineered design and high-quality components, the results are a devastatingly lethal round which is ideally suited for hunting or self-defense.

Underwood Ammunition Specifications and Features:

• Underwood Ammo Item Number: 645
• Caliber: .357 Sig
• Bullet Weight: 115 Grain
• Lehigh Xtreme Penetrator Solid Copper Projectile
• Nickel Plated Brass Case
• Boxer Primed
• Non-Corrosive
• Muzzle Velocity: 1,450 fps
• Muzzle Energy: 537 ft/lbs
• Uses: Self Defense or Hunting
• 20 Rounds