I have had a Bobcat 22 caliber for a couple years in the black finish which is a parkerized finish. I could only pull the action back with difficulty and it would not eject all of the different kinds of ammo I had. Being a tool and die maker by trade I took the gun apart and polished areas that the parkerized finish had made the gun difficult to cycle. There are two main springs that are actuated when the gun fires. I cut each spring shorter by an 1/8". After this work the gun will fire any ammo I put in and I can pull the receiver back half the effort required before I did the work to the gun. I realize this may not be for everyone, but I wanted the pistol to fire at all times which it does now.