not sure if this is new problem or not as it is not my gun, the gun lives in a workshop so most probably be knocked around a few times. tried zeroing the scope with no luck. taking the silencer off makes the accuracy even worse. and yes it is a floating barrel. the gun has a lever on it to be able to change the power settings but get the same results with the power different power settings. not sure about seals dont really have the knowledge on checking these.