Built around a fluted, solid-copper bullet, Underwood Xtreme Defense Platinum .380 ACP ammunition (brand part no. 678) is a 68-grain load designed to punch through barriers most defensive hollow points cannot. Underwood Ammo engineers the Xtreme Defense line around a fluted, solid-copper projectile instead of a traditional hollow point, using the flutes to displace tissue and create a wide, permanent wound channel even after passing through wallboard, sheet metal, or auto glass. Nickel-plated brass cases resist corrosion and feed smoothly across a range of .380 ACP pistols, keeping this concealed-carry load reliable when it matters most. For shooters who carry a compact .380 for personal defense, this handgun ammunition is built to perform even when barriers get in the way.

Key Specifications

• This round is chambered in .380 ACP, a caliber built around compact, easily concealed pistols carried for personal defense.
• The bullet weighs 68 grains, lighter than standard .380 ACP defensive bullets, which helps drive higher velocity.
• The bullet is solid monolithic copper, machined from a single piece rather than a jacketed lead core.
• A fluted nose hydraulically displaces tissue, creating a wide permanent wound channel without relying on expansion.
• Because the bullet cannot clog like a hollow point, it holds its wound channel through barriers such as wallboard, sheet metal, or auto glass.
• Cost works out to about $1.34 per round, in line with premium barrier-defeating defensive ammunition.
• Nickel-plated brass cases resist corrosion and feed smoothly through a range of .380 pistols.
• Each box holds 20 rounds, enough to load several magazines for practice and carry.
• A full case includes 10 boxes, totaling 200 rounds for shooters who want to stock up.

Frequently Asked Questions

Does this bullet expand like a traditional hollow point? No, the Xtreme Defense bullet is a solid monolithic copper design that displaces tissue through nose flutes rather than expanding, giving it barrier-blind performance instead of relying on cavity expansion.

Will barriers like auto glass or wallboard affect this round? Common barriers have little effect on the wound channel, since the bullet is solid copper rather than a hollow point that can clog.

How many rounds come in a full case? A case of this Underwood .380 ACP Platinum load includes 10 boxes of 20 rounds each, for 200 rounds total.

Buy the Underwood Xtreme Defense Platinum .380 ACP

A compact .380 is only as good as the ammunition behind it, and Underwood built the Xtreme Defense Platinum line for carriers who want penetration a hollow point cannot guarantee. Load a magazine with this solid-copper round and carry with confidence that barriers will not compromise the shot. Order from our Lubbock, Texas gun shop and it ships fast to your door.