NapaSpringer,
I now own the .177 and the .22 caliber. I too could not pass it up with the price they are offering. The last time I checked Hatsan still had it avalible in all three calibers.
There is a guy on YouTube called Rich Delong that I am friends with on FaceBook that just bought a .22 caliber. I think Rich is going to break his down and tune it. He says he will post a video.
The guns I have are a TANK! When Hatsan says "SOLID" on there advertising; they MEAN IT!
The FPS these guns shoot seams to be as advertised, however they are not as powerful as the 150's (or even the 125's)
Come back on this thread and let us know how the .25 works out.
I will tell you this; The barrel is FILTHY on these guns when you get them. Full of some grease like crap that was hard to get completely out of mine. I cleaned the barrel again after about 50 shots and found from the looks of the cleaning patches that I had not had the barrel completely clean.
Old Geezer