Winchester S22MPDX1 Defender 22WMR 40gr JHP Ammo 50rd Box

The Winchester S22MPDX1 Defender delivers maximum stopping power in the compact 22 Winchester Magnum Rimfire cartridge. This premium defensive ammunition combines Winchester's proven jacketed hollow point technology with optimized powder charges for reliable expansion and deep penetration.

What Makes This Different

Unlike standard 22WMR rounds designed for small game, the Defender series features engineered hollow point construction that opens consistently at rimfire velocities. The 40-grain projectile maintains structural integrity while expanding to create larger wound channels than traditional solid point ammunition. Winchester's quality control ensures consistent velocities and reliable ignition across temperature extremes.

Key Features

• 40-grain jacketed hollow point bullets for controlled expansion
• 22 Winchester Magnum Rimfire chambering for increased velocity
• Nickel-plated brass cases resist corrosion and aid extraction
• Premium powder formulation for consistent muzzle velocities
• 50 rounds per box packaging for extended range sessions
• Compatible with all 22WMR firearms including revolvers and rifles
• Non-corrosive primers for extended storage capability

Field testing demonstrates reliable expansion at velocities from 1,400 to 2,000 feet per second depending on barrel length. The jacketed construction prevents lead fouling in rifled barrels while maintaining accuracy standards expected from Winchester ammunition. Hunters appreciate the flat trajectory for varmint control, while the hollow point design provides effective stopping power for personal protection applications.

Technical Specs

• Caliber: 22 Winchester Magnum Rimfire (22WMR)
• Bullet Weight: 40 grains
• Bullet Type: Jacketed Hollow Point (JHP)
• Case Material: Nickel-plated brass
• Primer Type: Non-corrosive rimfire
• Quantity: 50 rounds per box
• Case Quantity: 20 boxes per case (1,000 rounds total)
• Manufacturer: Winchester Ammunition

Winchester's reputation for consistent performance makes this ammunition a reliable choice for shooters requiring dependable expansion characteristics. The bulk packaging provides excellent value for high-volume shooters while maintaining the quality control standards Winchester has maintained for over 150 years.