Check the listing for details. LEE Pacesetter 3 Die Set for 257 Roberts Ackley Improved # 90988 New!. Condition: New. Listed at 44.84 USD. Pacesetter 3 Die Set 90988 NEW! For: 257 Roberts Ackley Improved Includes: Factory Crimp Die Full Length Sizer Die Buller Seater Die Powder Dipper Shellholder Load Data 3 Die Case This die set is designed to reload the 40 degree shoulder angle. Lee Precision has been manufacturing high quality, affordable reloading equipment since 1958. Each Pacesetter 3-Die Set includes the exclusive Lee Factory Crimp Die, Full Length Sizer Die and Bullet Seater Die. Each set is made from steel and includes the appropriate Shellholder, Powder Measure, load data, plastic storage box and a two year warranty. Adjustable crimp from slight taper to full roll. Threads: 7/8"-14 ~~~~~~~~~~~~~~~~~~ We are a Factory Direct Dealer of Lee Precision, Inc. ALL MANUFACTURERS WARRANTIES WILL APPLY ! All of our products are BRAND NEW in the box; and contain all of the parts, materials and documentation. You can expect and will receive prompt delivery of your item. We will ship your order within ONE DAY! We are unable to accept returns on used, fitted, or altered parts. Returns must be in new, unused condition and in their original packaging.