HORNADY 546278 264 WIN MAG FULL LENGTH 2 DIE SET

The Hornady Custom Grade New Dimension 2-Die Set (546278) is a full length reloading die set chambered for 264 Winchester Magnum, built for rifle reloaders who handload one of the most capable long-range belted magnums in the American Winchester lineup and want precision sizing, consistent bullet seating, and a lifetime-warranted die set that handles the demands of magnum brass.

Key Features

• Part number: 546278
• Cartridge: 264 Winchester Magnum (.264 diameter)
• Die set type: full length 2-die set
• Dies included: full length sizing die with Elliptical Expander and Zip Spindle, inline bullet seating die with floating alignment sleeve
• Threads: 7/8 inch by 14, fits all standard reloading presses
• Sure-Loc locking rings: two included
• Storage box: stackable die storage box included
• Shell holder: sold separately, shell holder number 5
• Warranty: Hornady no-risk lifetime warranty
• Country of origin: United States

Special Features

• The Elliptical Expander delivers smoother neck sizing than standard ball expanders, reducing friction and case neck stretch across belted magnum brass that reloaders depend on for multiple loading cycles.
• The Zip Spindle uses a series of light threads on both the spindle and collet to eliminate slippage, making incremental seating depth adjustments fast and repeatable without excessive lock-down force.
• The inline floating alignment sleeve in the seating die holds the bullet, case neck, and seating stem in perfect alignment before the bullet enters the case neck, reducing runout and improving the concentricity that directly affects long-range vertical dispersion.
• The built-in roll crimp in the seating die secures the bullet without a separate crimping die or extra press pass, saving a station on turret and progressive presses.
• Sure-Loc rings clamp around the entire die body under constant pressure, protecting die threads and holding position reliably through long reloading sessions.

Practical Benefits

• Full length sizing returns cases to SAAMI minimum dimensions, making these dies the correct choice for bolt rifles where cases are not dedicated to a single chamber and for any shooter running mixed brass.
• The 264 Winchester Magnum is a high-velocity long-range cartridge well suited for deer, elk, and open-country hunting where flat trajectory and retained energy at distance matter, and precision handloads built on this die set let you reach the full potential of the cartridge.
• The 7/8 by 14 thread fits virtually every single-stage, turret, and progressive press on the market, making this set a direct drop-in to your existing reloading bench without adapters.
• The Elliptical Expander and inline seating system work together to reduce the velocity spread and concentricity variation that translate into vertical dispersion at the extended distances where the 264 Winchester Magnum is most often shot.
• If you handload for a 264 Winchester Magnum and want dies built to the same standard the cartridge demands, the Hornady Custom Grade 2-Die Set (546278) delivers that with a no-risk lifetime guarantee behind every set.

The Hornady Custom Grade New Dimension 2-Die Set (546278) for 264 Winchester Magnum is a confident choice for serious rifle reloaders who want precision full length sizing, reduced magnum brass stretch, and American-made durability in a press-compatible package.