Winchester X10MMBB 10mm Auto 200gr SJHP Ammo - 20 Rounds

The Winchester X10MMBB Big Bore ammunition delivers maximum stopping power in 10mm Auto with 200-grain semi-jacketed hollow point construction. This premium defensive ammunition combines controlled expansion with deep penetration for serious applications requiring proven terminal performance.

What Makes This Different

Winchester's Big Bore line features heavier projectiles than standard 10mm loads, with the 200-grain bullet providing superior momentum transfer compared to lighter 180-grain alternatives. The semi-jacketed hollow point design ensures reliable expansion while maintaining structural integrity through barriers. Factory-loaded to SAAMI specifications, this ammunition generates consistent velocities around 1,050 fps from 5-inch barrels.

Key Features

• 200-grain semi-jacketed hollow point bullets for controlled expansion
• Premium brass cases with boxer primers for reliable ignition
• Optimized powder charge for consistent 10mm Auto performance
• Compatible with all 10mm Auto firearms including Glock, 1911, and revolvers
• Nickel-plated cases resist corrosion and aid extraction
• Factory crimped for reliable feeding in semi-automatic pistols
• Packaged in 20-round boxes with 10 boxes per case (200 total rounds)

This ammunition excels in hunting applications where deep penetration matters, particularly for medium game within appropriate ranges. The heavier bullet weight maintains energy downrange better than lighter options, while the hollow point cavity initiates expansion upon impact with soft tissue. Law enforcement agencies appreciate the consistent performance and reliable feeding characteristics in duty pistols.

Technical Specs

• Caliber: 10mm Auto
• Bullet Weight: 200 grains
• Bullet Type: Semi-Jacketed Hollow Point (SJHP)
• Muzzle Velocity: Approximately 1,050 fps (5-inch barrel)
• Muzzle Energy: Approximately 490 ft-lbs
• Case Material: Nickel-plated brass
• Primer Type: Boxer, non-corrosive
• Manufactured: United States
• Quantity: 20 rounds per box, 10 boxes per case

Winchester's reputation for consistent quality control ensures uniform performance across production lots. The Big Bore series addresses the demand for full-power 10mm ammunition that maximizes the cartridge's potential rather than downloading it to .40 S&W levels.