Hi Craig, muzzle velocity is 1000 fps. "The loads’ nickel-plated lead-core bullet is propelled at extreme velocities and engineered to minimize expansion to hit critical penetration depths through short-barrel handguns".
All of the specs you need are here >>> federalpremium.com/rimfire/personal-defense-punch-rimfire/11-PD22WMR1.html
Stay safe & have a great day!

Hi Craig and welcome. Muzzle velocity 1,000 fps through 2" barrel handguns, 1,800 fps through rifle barrels. Stopping power is slightly better due to weight and optimized bullet for self-defense. cheers and stay safe!