RE: Free floating barrel problem ??
In general if it is shooting good don't mess with it. However, what is in your definition pretty good?
Taking the rifle apart is typically pretty easy just take your time. Remove the bolt and magazine. Remove the action screws and pull it apart. If it is a new gun taking the action out of the barrel may take some force.
Before taking it apart I would contact the manufacturer and see what there policy is on free-floating. Maybe they'll do it for you.
Tom