The Hornady Series V 4 Die set include a full length sizing die, expander die, seater die, and a crimp die. The full length die features a titanium nitride coated sizing ring which eliminates stuck cases, and Hornady's zip spindle system that makes setup and adjustment easy.The Seating Die includes a floating bullet alignment sleeve and a floating steel seating stem.The seating system holds the bullet, the case neck, and the seating stem in perfect alignment in a sleeve before the bullet enters the neck of the case. Bullets are aligned in the sleeve as they enter the die for optimum seating and enhanced accuracy. The Case Mouth Expander Die is adjustable, and the Crimp Die is great when using heavy loads.