When you say, "Push the cylinder", how do you mean that? Rotating the cylinder, or pushing it toward the rear of the gun? One particular chamber, or does it vary? Sounds possibly like there is an endshake problem, i.e., the cylinder has too much gap between the cylinder bearing surface and the frame just back of the barrel forcing cone. Hard to say without being able to examine the gun. I think you have more problem than just the hands.