Thanks for the input. The Redding sizer die was defective. I have sucessfully resized a few cases with an old rcbs die that I have. The machine seems to be working OK. When I sat the whole thing up, I used the alignment tool I got from Dillon. With the whole thing disassembled I centered the platform with the tool installed in a powder die in the first station. The "guage" was inserted in the primer insertion hole in the platform. I snugged the capscrews as suggested, and worked the ram up and down many times. There was absolutely no contact with the guage at that time. However when I installed the primer feed system, there is a slight amount of pressure on the platform (side pressure) caused by the operating rod. With the alignment guage still in station 1 if I move the ram up there is slight contact with the guage. The ram will still pass, but it does come into slight contact with the guage. Apparrantly it is caused only by natural tolerance built into the machine, as all the above componants are new and have never been used before. I guess that sometimes I am just a little too picky.