Welcome to the forum.
Walther P22 is a nice little gun.
Sold mine to my brother to he could teach his ex to shoot.
She lives in a bad area and one of the boy still lives at home. So she is learning.
Dont know much about them except that they like hot loads. Bulk ammo tends to jam up in the P22 he has.
Works fine in all my rifles put both the P22 and my Browning BuckMark have issues with the bulk.
Have fun and shoot safe.