Originally Posted by buckbrush
I am using an RCBS rock chuck press with Remington Brass and a Lee Collet Die set.
Where do I go from here to eliminate it?
Thanks for any help.
Measure and sort at each stage of the process a selection of brass. Your measurements should point to the greastest cause of runout. Eliminate the identified problem and move on to the next largest runout stage. Sounds easier than it actually is. Good luck.