Brand CCI 
Category Rimfire Rounds 
Caliber 22 Winchester Magnum Rimfire (WMR) 
Model Pest Control 
Series Maxi-Mag 
Bullet Weight 52 GR 
Rounds Per Box 20 
Casing Material Brass 
Boxes Per Case 100 
Bullet Type #12 Shot 
Muzzle Energy 115 ft lbs 
Muzzle Velocity 1000 fps 

CCI Pest Control shotshell are excellent answers at short range. It delivers consistent patterns and easier hits on pests.