Dillon XL650 Upgrade - Low Mass Index Ball & Bearing kit - Essential improvement!
This guide details the installation of the Low Mass Ball & Bearing kit for the Dillon XL650 reloading press. The upgrade replaces the OEM ball bearing and spring under the shell plate with a reduced power spring and a slick phenolic ball. This modification aims to smooth out the press action, reduce harsh stops during shell plate advancement, speed up cycling, and minimize powder spillage, particularly with fine-grained powders like Accurate Solo.











