This funnel is designed to work with your existing setpoint on your Dillon Precision powder dies to allow you to use precision-weighed powder charges. Its design minimizes interference with other dies on the toolhead, ensures easy flow of powder while incurring essentially no static cling of kernels, and gives slight movement when the case is in position to indicate that you are ready to add powder.
Simply keep your Dillon Precision powder die in its current state and use the appropriate Dillon powder insert for your cartridge. Slide the funnel onto the die and go to work! No height change should be necessary. The powder insert will push against the funnel to create a good seal to maximize transfer of powder to the case.