[Drdogface]

Yeah, something is really wrong here and can be fixed. Dillon support is top notch. I have two 650's and one 550B. Not a problem with either. If I ever experience a problem, however, it is with primer feed disc..not the tube. As for powder, perhaps you have been using some that has clumped and a chunk is in the charge bar giving you erratic results. That has happened to me as well. May be a small clumped piece in the powder funnel in the powder die.

Seems Dillon would replace the primer tube free in a heart beat if need be.