Underwood Ammo Xtreme Defender ammunition in .380 ACP (brand part no. 638) is a defensive load engineered around reliable expansion and stopping power. Underwood Ammo builds this load from consistent, quality-checked components for dependable performance shot after shot. At the heart of this load is the 68 gr bullet, matched to the .380 ACP platform shooters already run. In our handgun ammunition lineup, this is the Underwood Ammo load built for that job.

Key Specifications

• The caliber is .380 ACP, a caliber with ammunition and magazines available everywhere.
• The bullet weighs 68 gr, sized for the terminal performance this load is built around.
• The case is Nickel-Plated Brass, reloadable for handloaders who want to reuse brass.
• Muzzle velocity is rated at approximately 1300 fps, for a flatter path to the target and more delivered energy.
• Each box holds 20 rounds, enough to confirm zero and still have rounds left to shoot.
• Cost works out to about $1.41 per round, keeping practice sessions affordable.
• The box ships at approximately 0.39 lbs, handy for planning shipping costs on a bulk order.
• This is a centerfire cartridge, ignited by a replaceable primer rather than a rimfire priming ring.
• Xtreme Defender is Underwood’s fluted, lead-free solid-copper bullet, built to cut a wide, permanent wound channel through fluid displacement rather than traditional expansion.
• This bullet is manufactured by Lehigh Defense and loaded by Underwood, pairing Lehigh’s fluted Xtreme Penetrator design with Underwood’s ammunition assembly.

Frequently Asked Questions

Does the Xtreme Defender bullet expand like a hollow point? No, it’s a fluted solid-copper design that cuts a wide wound channel through fluid displacement rather than traditional hollow-point expansion.

How many rounds come in a box? Each box holds 20 rounds of .380 ACP.

Buy the Underwood Ammo Xtreme Defender .380 ACP 68 gr, 20-Round Box

Stock up before the next range trip or hunt, and let the ammunition be the one thing you don’t have to think about. Order from our Lubbock, Texas gun shop and it ships fast to your door.