Bringing the performance of Hornady's best self-defense ammunition to rim fires, Critical Defense .22 WMR Rimfire Ammo delivers effective, consistent, and reliable self-defense. Critical Defense rounds utilize Hornady's clean burning and stable propellants for reduced recoil, consistent performance in all temperatures, and minimal muzzle flash to protect night vision. Unaffected by thick and heavy clothing, these rounds feature a 45-grain FTX bullet with Flex Tip. This specially designed bullet delivers superior controlled expansion, flat trajectory, and large, deep wound cavities over a wide range of velocities. High-visibility shiny silver nickel-plated case resists corrosion. 1700 fps. Effective, consistent, and reliable self-defense for rimfire guns Optimized for short barrel firearms 45-grain FTX bullet with Flex Tip design Controlled expansion, flat trajectory, and large wound cavities over a wide range of velocities Stable, clean burning propellants reduced recoil, consistent performance Minimal muzzle flash to protect night vision High visibility silver nickel plated cases prevent corrosion Note: Effective 5/25/2021, nickel plating on all Critical Defense handgun ammo is temporarily suspended due to freight system bottlenecks; this suspension is short term and will return to normal when supply chains issues are resolved.