The Dillon metal primer flip tray makes it easy to fill primer pick-up tubes. The heavier metal tray makes it less likely for primers to bounce over while filling, and the larger diameter of our tray allows use of larger primer packaging, such as used by Federal.<br /><br />The Dillon primer flip tray is made of a zinc alloy. The Dillon primer flip tray is the only metal tray and is largest available in the industry today.