I did a little experimenting the other night I decided to use my lee classic cast as the lab rat incase I messed anything up anyway I removed the clip ring in the shell holder seat on the ram and eased a rubber o-ring over it into the groover that the little metal clip originally sat now the shell holder moves freely. I originally stopped using my classic cast because of the excessive run out i was experiencing that I blamed on the two piece ram. anyway long story short I loaded up some 308 rounds and the run out is now within .002" to .004" before it varied as much as .014"

guys get rid of those shell holder clips and replace it with a rubber O-ring. No need for any other remedies. good luck