The Underwood Ammo 231 Sporting 10mm Auto 135gr Jacketed Hollow Point is engineered as high performance handgun ammunition for shooters who demand consistent results. Each round uses a 135-grain jacketed hollow point bullet seated in a nickel-plated brass case, designed to feed smoothly and resist corrosion while delivering reliable expansion and energy on target.

This 10mm Auto load is optimized for medium game hunting and dedicated personal protection roles, pairing a rated muzzle velocity of 1600 fps with 768 ft-lb of muzzle energy for strong terminal performance. Flash-suppressed powder helps preserve your sight picture in low light, while boxer-primed, reloadable cases make it practical for regular range training. Underwood Ammo is known for precise manufacturing and carefully tuned ballistics that give shooters confidence shot after shot.

Key Features:

• Manufacturer: Underwood Ammo
• Model: 231 Sporting
• Caliber: 10mm Auto
• Bullet Type: Jacketed Hollow Point
• Bullet Weight: 135 Grains
• Muzzle Velocity: 1600 Fps
• Muzzle Energy: 768 Ft Lbs
• Case Material: Nickel-Plated Brass
• Rounds Per Box: 20
• Boxes Per Case: 10
• Application: Hunting Medium Game / Personal protection