I am having problems with my Automatic Primer System. I just bought the machine but it was used. Not sure how it supposed to operate so i don't know what wrong with it. As i look into where the primer cup meets the primer magazine there is a huge gap I can't see any primers. The primer magazine is inserted correctly i looked several times. I believe the tab is supposed to face away the from the shell. Any help would be appreciated. I can take some photos if they are needed.