Underwood Ammo 10mm 180gr FMJ - 50 Rounds Box/10 Case

The Underwood Ammo 297 delivers consistent 10mm performance with 180-grain full metal jacket bullets engineered for reliable feeding and penetration. This ammunition produces higher velocities than standard factory loads while maintaining exceptional accuracy across multiple platforms.

What Makes This Different

Underwood's loading philosophy emphasizes maximum performance from each cartridge, generating approximately 1,300 fps muzzle velocity with 180-grain projectiles. The company loads to higher pressure specifications than mainstream manufacturers, extracting the full potential of the 10mm cartridge. Each round undergoes quality control testing to ensure consistent powder charges and overall length specifications.

Key Features

• 180-grain full metal jacket bullets for deep penetration and reliable expansion
• High-velocity loading generates approximately 1,300 fps muzzle velocity
• Nickel-plated brass cases resist corrosion and enhance extraction
• Compatible with all 10mm Auto firearms including Glock, 1911, and carbine platforms
• Bulk packaging with 500 rounds total (50 per box, 10 boxes per case)
• Consistent overall length of 1.260 inches for reliable feeding
• Flash-suppressed powder reduces muzzle signature in low-light conditions

This ammunition performs effectively in hunting scenarios requiring deep penetration through heavy bone and muscle tissue. The full metal jacket design maintains structural integrity when encountering barriers, making it suitable for competitive shooting disciplines and training applications. Range testing demonstrates consistent accuracy with groups typically measuring under 2 inches at 25 yards from quality barrels.

Technical Specs

• Caliber: 10mm Auto
• Bullet Weight: 180 grains
• Bullet Type: Full Metal Jacket (FMJ)
• Muzzle Velocity: Approximately 1,300 fps
• Muzzle Energy: Approximately 675 ft-lbs
• Case Material: Nickel-plated brass
• Primer: Small pistol, non-corrosive
• Overall Length: 1.260 inches
• Packaging: 50 rounds per box, 10 boxes per case
• Manufactured: United States

Serious shooters recognize Underwood's commitment to performance-oriented ammunition that exceeds SAAMI specifications. The bulk case format provides substantial cost savings for high-volume shooters while ensuring consistent lot-to-lot performance. This loading represents the 10mm cartridge operating at its intended performance level.