You aren't doing something right. With the failsafe rod, pull it ALL the way down, then tighten the nut to where when the handle is pushed forward to seat a primer, there is little to no space between the coils of the spring. Secondly, make sure the powder bar is actuating the full amount back and forth. If it isn't, adjust the height of the powder measure until the powder bar goes flush with the housing on the full down stroke of the handle.   Your failsafe rod and powder actuator sho