Teotimo,
The Model-25 is an ideal candidate for the .22 caliber!
I have a .22 Hy-Score 801 which is a 25 variant and simply love it! Many other shooters and some Forum members here also have em and share the contentment!
The M-25 in .22 shoots around 450-500fps and has the capibility to hunt at close range with for small game and vermin. The 30 yard accuracy is plenty good enough for pest birds, and the rifle has enough power for 20 yard small game up to rabbit size.
I really like to just plink with my 25. It cocks super easilly, the power is good and the trajectory very predictable. Mine likes the RWS Hobby best, the Crosman W/C, Points, Benjamin Domes, and the Daisy/Gamo W/C's. It actually does not turn it's nose up at any ammo, but light and mid-weight pellets do best.
If you are considering one, you will not be dissapointed!
ZVP