Underwood 10mm 220gr Hard Cast Flat Nose Ammunition

Underwood 10mm Hard Cast Ammunition

Underwood has engineered these 10mm cartridges with serious shooters in mind. Each round pairs a 220-grain hard cast flat nose projectile with a polymer-based Black Cherry coating—a significant advancement over traditional lead bullet coatings.

The Black Cherry Coating Advantage

This proprietary coating delivers performance benefits that matter on the range and in the field:

• Lead Fouling Prevention: The coating creates a complete barrier between the lead core and your bore, virtually eliminating lead buildup that can degrade accuracy and require extensive cleaning.
• Thermal Stability: Unlike older coatings, Black Cherry maintains integrity under sustained firing and high-pressure conditions without degradation or unpleasant odors.
• Durability: Superior wear and abrasion resistance means the coating stays intact through the firing cycle, protecting both bullet and bore.
• Self-Lubricating: Reduced friction means smoother feeding and cycling through your firearm.
• Velocity Capability: The protective qualities allow you to push these rounds to higher velocities without the lead fouling problems that plague uncoated ammunition.

Specifications

• Caliber: 10mm Auto
• Bullet Weight: 220 grains
• Bullet Style: Hard cast flat nose
• Muzzle Velocity: 1200 feet per second
• Quantity: 20 rounds per box

These rounds are ideal for target shooting, training, and defensive applications where reliability and bore protection are priorities.