For those with Dillon 650 having problems with spilling powder when loading small cases (e.g. 9mm) filled to the brim, this will help. The cost of the parts, including shipping, is less than $10. Removes the snap and play out of the shellplate as it moves from station to station. The washer/ball bearing/washer installs between the shellplate and bolt. PM me if you have any questions. Chichay