I have the same S&W 22a. This is my first handgun. Truthfully, I'm still pretty aweful at shooting it. I have a target that is 6" and I can only keep an average of 5 of 10in the circle at 20 yards (not 25 like you are shooting) freehand.

I am getting better though. I was averaging only 2 just over a month ago.
I really do enjoy the gun i just don't get tothe range withit more than once a week.