As I mentioned in my good morning post, I ran into a problem loading .224 Valkyrie on my Dillon 550B. Dillon had advised me to use the #5 shell plate and #3 buttons. The combination of parts locked up the shell plate unless I only ran one case through at a time. I emailed Dillon last night and they just replied. They said there was an error in their system and it should have been the smaller #2 button. They are sending me a set of #2s free. Hard to beat that! Hats off to Dillon.