That depends. What exactly is off?
Does the action bind before the hammer reaches full cock, or the trigger the rear most of its travel? Or does the trigger reach rear travel or hammer full cock and the cylinder isn't locked into place yet? Or, does trigger reach rear travel or hammer full cock, and the cylinder is actually past lined up with the bore? Or, is the action binding at the beginning of trigger travel because the cylinder doesn't want to rotate?
Each of these has a different answer.
If you are not rather quite familiar with how a double action revolver works, it is just as easy to screw it up worse as it is to fix it.