Ok No ultrasonic cleaner and noone has access to my guns except me.The only thing that gave me pause was that the gun was grouping slightly right to my point of aim where I was pointing dead center.@ 30 feet the Q in the FBI Q target is gone in 5 shots and there was a big group just to the right of it.The gun is out to S+W and I will be waiting for thier response.I requested a Classic Model 36 as a replacement and we will see what happens........Mike