start from the beginning of your adjustment. if there is no damage. take a metal edge of a ruler at 45 deg to the barrel length, hold it up to a light source if there is no light shinning thru then the barrel is good. next put the gun upside down on the table's edge so only the two sights are on the table, use a carpenter's 90 deg level against the gun to see if the gun is streight. if this all shows the gun is square then : with out any bullets hold the gun at a far target and pull the trigger looking down the sights. when you can pull the trigger with out losing the target your problem will be solved. smith & Wesson weld the sights and its is hard to knock them off there alignment but if the gun fails any of the above tests never use it again.