Underwood Ammo loads this 9mm Luger 90gr Xtreme Defender Platinum Edition 20 rounds to the box (Underwood part no. 875), a solid monolithic copper design with no lead in the bullet. The Xtreme Defender is based on Underwood’s Xtreme Penetrator line, with an optimized nose flute, bullet weight and velocity that Underwood says reach a penetration depth of up to 18 inches, a figure it places within FBI guidelines. The Platinum Edition adds a coating over the copper that Underwood credits with corrosion resistance, better feeding and reduced barrel wear. It leaves the barrel at 1400 feet per second and the maker describes it as an effective choice for self-defense applications.

Key Specifications

• The chambering is 9mm Luger, the single designation Underwood lists for this load.
• The bullet weighs 90 grains, the weight Underwood loads in this Xtreme Defender.
• The bullet is a solid monolithic copper Xtreme Defender with an optimized nose flute, built to expand even after passing through barriers.
• The bullet is lead-free, as the maker states the projectile is copper and does not contain lead.
• Muzzle velocity is rated at 1400 fps, and Underwood lists this as a supersonic round.
• Muzzle energy is listed at 392 ft-lbs, a figure that lets you compare it with other 9mm loads.
• The case is nickel-plated brass, which Underwood says gives smoother feeding and better corrosion resistance than plain brass.
• The bullet has a sectional density of 0.102 and a G1 ballistic coefficient of 0.087, the published numbers for this projectile.
• The Platinum Edition finish is a coating over the copper bullet that the maker says reduces barrel wear compared with a standard monolithic projectile.
• Each box holds 20 rounds, a count that suits stocking a couple of carry magazines.

Frequently Asked Questions

Is this 9mm load a +P round? Underwood lists this load simply as 9mm Luger, not +P or +P+. Its +P and +P+ 9mm loads are separate products.

Can I shoot this ammunition through a suppressor? Yes. Underwood states that this ammunition is safe to use in a suppressor.

What does the coating on the Platinum Edition do? Underwood says the coating protects the copper from oxidation and darkening in storage, helps feeding in all actions and reduces barrel wear compared with a standard monolithic projectile.

Buy the Underwood Ammo 9mm Luger 90gr Xtreme Defender Platinum Edition Ammunition, 20-Round Box

The Platinum Edition is built for shooters who store defensive ammunition for long stretches and want the copper to stay clean. Add a box to your order with other handgun ammunition and it ships from our Lubbock, Texas gun shop with fast, insured delivery.