The Underwood .38 Special 100gr Xtreme Defender from Underwood Ammo (Underwood part no. 852) is a solid copper, lead-free .38 Special load sold in a 20-round box. Underwood builds the Xtreme Defender on its Xtreme Penetrator line, with an optimized nose flute, total weight and velocity. The body is CNC machined from solid copper with radial flutes that force hydraulic energy inward and sharp cutting edges, and Underwood notes reduced recoil among its features. Muzzle velocity is listed at 1,200 fps with 320 ft-lbs of energy. It is a modern monolithic option for .38 Special revolver shooters.

Key Specifications

• Chambering is .38 Special, the standard designation for this revolver cartridge.
• Bullet weight is 100 grains, the projectile mass Underwood lists for this load.
• Bullet construction is solid monolithic copper, a one-piece bullet with no lead core.
• The bullet model is the Xtreme Defender, based on Underwood’s Xtreme Penetrator line.
• Muzzle velocity is listed at 1,200 fps, the figure Underwood publishes for this load.
• Muzzle energy is listed at 320 ft-lbs, Underwood’s published number for this load.
• The case is nickel-plated brass, which Underwood says improves feeding and corrosion resistance and keeps the case from tarnishing in storage.
• Box quantity is 20 rounds, the number of loaded cartridges in the box you receive.
• The bullet is lead free solid copper, per Underwood’s listing.
• Sectional density is 0.11, the ratio of the bullet’s mass to its cross-sectional area.

Frequently Asked Questions

Is the Xtreme Defender bullet lead free? Yes. Underwood lists the bullet as solid copper and not containing lead.

What makes the Xtreme Defender different from a standard hollow point? Underwood says it is based on the Xtreme Penetrator line, with an optimized nose flute, total weight and velocity, and a body CNC machined from solid copper with radial flutes and sharp cutting edges.

How many rounds come in the box? The box holds 20 loaded rounds.

Buy the Underwood .38 Special 100gr Xtreme Defender Ammunition, 20-Round Box

A one-piece copper bullet changes how a .38 Special behaves compared with lead, and this load is Underwood’s answer in a 100-grain weight. Order from our Lubbock, Texas gun shop for fast, insured shipping, and explore more handgun ammunition while you are here.