Pro Case Flare Die Features Case flare dies are especially designed for use with progressive and automated reloading presses. The long tapered expanding plug allows you to adjust for just the right amount of case flair to properly position a bullet for seating. Our Case Flare Die is also made of corrosion resistant stainless steel which protects it from rust and keeps it looking like new for a lifetime of use. Pro Case Flare Die Specifications Lyman Pro Case Flare Die 45 ACP