The first time I striped down my SR22 I found that the barrel was loose. I assume it came that way. You need to tightened it with a 9/64 allen wrench there is a set screw underneath the trigger guard. If someone gets a new gun they should check out.
There have been a few reports of loose barrels from the factory - as well a quite a few reports of non-captive guide rod springs - mine being one of them.I put about a hundred rounds threw mine worked flawlessly. Then took completely down and my barrel screw was loose also. Glad i decided to strip it down and clean. The screw must not have been tightened at the factory