Hornady Critical Defense 22 Winchester Magnum Rimfire (WMR) ammunition delivers reliable terminal performance in a rimfire cartridge. Designed for personal defense, this 45-grain load features the Hornady FTX bullet with a polymer tip for consistent expansion and barrier penetration. Since adding it to our catalog in Q4 2025, this ammo has proven to be a reliable seller with consistently positive customer feedback. It’s a solid choice for those who carry a .22 WMR firearm for protection.
Key Features
- FTX Polymer Tip Bullet: The Flex Tip technology initiates reliable, controlled expansion while preventing clogging from clothing or other barriers.
- Optimized for Short Barrels: The propellant is specifically formulated for reliable ignition and consistent velocity from compact handguns and revolvers.
- Nickel-Plated Cases: Provides superior corrosion resistance and ensures smooth feeding and extraction, even in semi-automatic platforms.
- Clean-Burning Propellant: Reduces fouling for more reliable function and easier maintenance of your firearm.
- Consistent Terminal Performance: Engineered to meet the FBI protocol for penetration and expansion in ballistic gelatin.
Specifications
| Caliber | .22 Winchester Magnum Rimfire (WMR) |
| Bullet Weight | 45 Grain |
| Bullet Type | Hornady FTX Polymer Tip |
| Muzzle Velocity | Approx. 1,500 fps (from 4″ barrel) |
| Case Type | Nickel-Plated Brass |
| Quantity | 50 Rounds per Box |
| Weight (measured) | 6.8 oz |
Frequently Asked Questions
Is this ammunition suitable for a compact .22 WMR revolver?
Yes. Hornady designed this Critical Defense load specifically for short-barreled firearms. The propellant is optimized for complete burn in barrels as short as 2 inches, ensuring reliable velocity and consistent performance from compact revolvers and pistols.
How does the FTX bullet perform compared to a standard hollow point?
The polymer tip serves two primary functions. First, it ensures the hollow point cavity does not get plugged by material like heavy clothing, which can cause a standard hollow point to fail to expand. Second, upon impact, the tip drives into the core, initiating rapid and uniform expansion for reliable terminal effect.
Does this ammo feed reliably in semi-automatic firearms?
Yes. The combination of the bullet profile and nickel-plated cases promotes reliable feeding and extraction. Our staff notes this load pairs well with firearms featuring an extended slide release for faster reloads and manipulation.
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