Hornady is one of the most respected names in ammunition, and their full length bottleneck cartridge sizing dies ensure that factory specifications are restored. The Hornady 284 Winchester Full Length Sizing Die delivers precision reloading performance built to exacting standards. Hornady reloading dies represent the finest in machined craftsmanship, with articulated details offering more precise reloading through easier adjustments, better alignment and smoother functioning.
This die features Hornady’s innovative engineering designed for serious handloaders. The Zip Spindle design on all full length size dies positively locks to eliminate slippage, with light threads cut on both the spindle and spindle collet allowing incremental adjustments. The internal die profile is precision machined and polished to a smooth finish that delivers reliable functioning without case sticking or excessive friction. The Hornady Sure-Loc lock rings clamp around the entire die applying constant pressure across the threads, with the locking screw tightening the ring without coming into contact with the threads, eliminating possible damage from pliers.
An elliptical expander superior to ball expanders provides extremely smooth neck sizing and significantly reduces friction and case neck stretch, with internal threading preventing it from pulling loose. Full length sizing dies ensure the highest reliability in semi automatic firearms and allow brass to be used in more than one firearm by ensuring that the brass is returned to SAAMI specifications. With one of the finest internal finishes in the industry, Hornady Custom Grade and Match Grade Dies provide a lifetime of reloading.





