The Redding Competition Bullet Seating Die – .260 Remington (MPN: 55531) is a dedicated reloading tool engineered to seat .264-inch (6.5 mm) diameter projectiles into .260 Remington cartridge cases with minimal bullet runout. Utilising an industry-standard 7/8"-14 thread interface, this unpowered, mechanical die fits standard single-stage and turret reloading presses. It features an internal floating chamber sleeve that completely encapsulates and aligns the cartridge case and bullet before seating begins, delivering tight concentricity and precise bullet-to-bore alignment.

Key Features:

• Straight-Line Sliding Sleeve: Uses a precision-ground internal alignment sleeve that holds the .260 Remington case and projectile in straight-line axial alignment throughout the entire seating stroke.
• Micrometer Depth Control: Equipped with a top-mounted, click-free micrometer calibrated in exact 0.001-inch increments with a resettable zero datum for precise bullet seating depth adjustments.
• Close-Tolerance Seating Stem: Includes a precision-ground standard seating stem (part #55046) designed to float on an internal air cushion to ensure consistent on-axis projectile seating.
• Bench Compatibility: Built with universal 7/8"-14 threading to fit standard Australian reloading bench setups, including presses from Redding, RCBS, Hornady, Forster, and Lyman.

Product Specifications:

• Calibre: .260 Remington
• Compatible Bullet Diameter: .264-inch (6.5 mm)
• Thread Interface: 7/8"-14 threads
• Adjustment Graduation: 0.001-inch micrometer increments
• Included Components: Die body, sliding alignment sleeve, standard seating stem (#55046), lock ring, and storage box
• Crimping Capability: None (dedicated seating die only)

Who is the Redding 260 Rem Competition Seating Die for?

• Precision Rifle Series competitors — relies on the 0.001-inch micrometer increments of this competition bullet seating die to fine-tune projectile jump-to-lands when developing match loads for .260 Remington rifles.
• F-Class long-range target shooters — uses the straight-line sliding sleeve to seat .264-inch bullets with minimal runout to maintain sub-MOA consistency across long-range target strings.
• Precision hunters handloading .260 Remington — mounts the die directly into standard 7/8"-14 threaded reloading presses to produce concentric, custom hunting ammunition with repeatable bullet seating depth.

Less suitable for: Reloaders chambering other 6.5mm bottleneck cartridges such as 6.5 Creedmoor or 6.5x55mm Swedish (which require cartridge-specific competition seating dies due to differing shoulder angles and sleeve dimensions), handloaders seating sharp Very Low Drag projectiles without installing the optional VLD stem (#55746), or those requiring a built-in crimp ring, who need a dedicated secondary taper crimp die instead.