I have the Dillon automatic charging system that I've used for years with the charging bar that came with it. It definitely worked excellently atop my Rock Chucker for many pistol reloads. However it is too small for the .308s I'm attempting to reload. I've seen reference to a magnum and large charging and don't seem to find either on their website. I've found the large bar at reloading sites, however which bar is actually correct for rifle reloading? Thanks in advance, Bill.,