cylinder timing is crucial on any revolver if the cylinder does not line up with the barrel on lock up (when the hammer is back) it can and will shave lead off the bullet when fired. that can do everything from hurt you or someone next to you to causing cylinder failure depending on how bad the gun is out of time. with a newer ruger like that I really doubt its an issue. but always something to look at. as far as I am concerned rugers single action pistols are some of the best made. enjoy your new gun if you get it. with care it will last you for years