I'll ask what case lube you are using OXN. I'm a dinosaur so I still use RCBS lube applied by rolling on RCBS pad, use a bore mop to lightly apply case lube to inside of neck for expander ball to pull through on die sets with ball.
Clean inside of neck using mop w/pvc solvent to remove lube, dry clean cloth to clean outside of case. Remember, I'm a dinosaur so I don't mind all the manual labor.
