Dillon Aluminum Roller Handle Dillon Aluminum Roller Handle. Dillon's accessory handle gives your reloader an entirely new "feel". A roller handle reduces operator fatigue during long reloading sessions and makes primer seating easier. Fits the RL550 and XL650 loaders. Available in blue only. The products offered for sale on this page can expose you to chemicals, including Lead, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.