Xtreme Penetrator 20Rd 10Bx/Csunderwood 500 Sw Mag 420Gr

The Underwood Xtreme Penetrator in .500 S&W Magnum is a serious big-bore handgun round built for hunters and shooters who demand maximum stopping power and deep penetration. Loaded with a 420-grain copper projectile, these cartridges deliver 2539 foot-pounds of muzzle energy and travel at 1650 feet per second—enough velocity and force to take down large game and provide reliable terminal performance in demanding hunting scenarios. Built on reloadable brass cases with boxer primers, this ammunition is also suited for shooters prioritizing lead-free components.

If you're running a .500 S&W revolver or hunting platform, the Xtreme Penetrator's heavy bullet and high sectional density (0.24 SD) are engineered to push through thick hide, bone, and vital zones with minimal deflection. The rounds are suppressor-safe as well, giving you flexibility in your setup. New production, non-corrosive construction means consistent ignition and reliable performance every time you load a cylinder.

Each box contains 20 loaded rounds, and this ammunition comes packed 10 boxes per case—a practical quantity for serious shooters and hunters who know what they need. Underwood's reputation for quality control and consistency backs every round, so you can focus on shot placement and hunting success rather than worrying about ammunition reliability.

Key Features

• 420-grain copper bullet—lead-free construction for hunters with environmental concerns
• 2539 foot-pounds of muzzle energy and 1650 fps velocity for deep penetration and stopping power
• Reloadable boxer-primed brass cases for cost-effective, sustainable shooting
• Suppressor-safe ammunition
• High sectional density (0.24 SD) optimized for penetration on large game
• Non-corrosive, new production for reliable ignition
• 20 rounds per box; 10 boxes per case

Specifications

Frequently Asked Questions

What is the Xtreme Penetrator .500 S&W Magnum designed for?

The Xtreme Penetrator is engineered for hunters and shooters working with large game where deep, reliable penetration is critical. The 420-grain copper bullet and high sectional density are optimized to drive through heavy cover and bone without fragmenting or deflecting off-course.

Can I reload this ammunition?

Yes. The cartridges use reloadable brass cases with boxer primers, making them suitable for handloaders looking to manage costs and ammunition availability long-term.

Is this ammunition suppressor-safe?

Yes, the Xtreme Penetrator is safe to use in suppressors, giving you flexibility in your .500 S&W setup.

How much ammo comes in each case?

Each case contains 10 boxes with 20 rounds per box, for a total of 200 rounds per case.