Another thing to look at is the pin that the cylinder rotates on is bent.
Roll it on a piece of glass and listen for "clicks" (like checking a motor pushrod).
A new pin can be picked up inexpensively.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)