45 Win Mag Shell Plate #3 for Lee Auto Breech Lock Pro by Lee Precision Product Overview now offers the Lee 45 Win Mag Shell Plate #3 for Lee Auto Breech Lock Pro. The BL Pro Shell Plate is for use on the Lee Breech Lock Pro press for progressive reloading. The #3 Shell Plate is constructed of high quality materials for strength and durability. These shell Plates are precision ground to prevent cases snagging or rough edges that impede loading. The #3 Shell Plate is sized for 45 Win Mag. Specifications and Features High Quality Materials 45 Win Mag Precision Ground For Use in Breech Lock Pro