Underwood Ammo produces personal defense ammunition that uses the Lehigh Defense Xtreme Defense bullet. This is a CNC-machined monolithic solid copper projectile with radial flutes designed to force hydraulic energy inward, resulting in a permanent wound cavity twice that of any expanding bullet. The optimized design of the bullet maximizes penetration up to 18". This defensive ammo is loaded with flash suppressed powder to help preserve night vision, and is designed for reduced recoil.

Underwood Ammo 810U
.357 SIG
90 grain solid copper Xtreme Defense bullet
Lead free
Reloadable nickel plated brass case
20 round box
Muzzle velocity 1700 fps
Muzzle energy 578 ft/lbs
Use for personal defense, law enforcement

20 rounds per box. To buy a full case, order 10 boxes.

Ammo Price is per box.