To convert your Pro1000 to 223 Rem, you may need to purchase the following, depending what is already set up on your press:
90253 - 223 Rem Pro1000 Reloading Dies http://leeprecision.com/223-rem-pro-1000-dies.html
90660 - Pro1000 Primer Attachment http://leeprecision.com/primer-attachment.html
90663 - Rifle Case Feeder http://leeprecision.com/pro-case-feeder-rifle.html
90653 - #4 Pro1000 Shell Plate http://leeprecision.com/pro-shell-plate-4.html
90497 - 3-Hole Turret (optional) http://leeprecision.com/3-hole-turret.html
