K-frame rotational play

[Cactuskid]

My question is how much rotational play is too much? I am considering the purchase of a model 17-4 K22. Upon examining the gun with the trigger pulled back and the hammer down I can turn the cylinder about 1/16" back and forth. I'm sure that S&W has a standard as to what is acceptable movement when the cylinder is locked-up, but I'm not sure what that is. I haven't fired the gun, and the current owner says he hasn't seen any evidence of lead shaving. I did notice some wear on the edges of the cylinder grooves, but I don't see any lateral movement of the cylinder stop, and I haven't noticed any significant end-play. Unfortunately, I won't get to fire the gun unless I buy it.

I would appreciate any advice from the members of this forum.

 

[armorer951]

Some gauge, or "play" as you refer to it, at lock-up is normal and in fact, necessary. I can't tell you if the gun you are considering has "too much" without examining the gun.

If the stop slots in the cylinder and the stop window in the frame are undamaged, then the excess gauge (if there is any) is coming from the wear on the ball of the cylinder stop, or the stop was not fit properly in the first place. This condition can be repaired with a new, properly fit cylinder stop if necessary.

If either the stop slots in the cylinder or the cylinder stop window is damaged (excessively peened open) I personally would pass on the gun.