The Redding 260 Rem Ackley Improved 40° Type S Match Full Length Die Set (Manufacturer Part Number: 36623) is a two-die precision reloading system engineered for forming and resizing .260 Remington Ackley Improved cartridge cases with a 40° shoulder angle. Built from heat-treated, precision-machined steel with polished internal surfaces, this set includes a Type S Full-Length Bushing Sizing Die (#77623) and a Competition Bullet Seating Die (#55623). It mounts to standard single-stage or turret reloading presses using standard 7/8"-14 threading and operates entirely via mechanical leverage, requiring no electrical power.

Key Features

• Type S Full-Length Sizing Die: Resizes the case body, sets back the 40° shoulder, and sizes the neck using interchangeable Redding sizing bushings to control neck tension without overworking brass.
• Competition Seating Die with Micrometer: Features a micrometer adjustment top graduated in 0.001" increments for precise bullet seating depth control.
• Internal Alignment Sleeve: Pre-aligns the bullet and cartridge case inside a floating seating stem assembly before seating begins to reduce runout.
• Adjustable Decapping Assembly: Includes a floating decapping rod assembly with a standard expander button that can be removed or swapped for an optional carbide expander button.

Product Specifications

• Brand: Redding Reloading Equipment
• Model / MPN: 36623
• Calibre: .260 Remington Ackley Improved (40° shoulder)
• Die Thread Interface: 7/8"-14 threading
• Micrometer Graduation: 0.001" increments
• Included Components: Type S Full-Length Bushing Sizing Die (#77623), Competition Bullet Seating Die (#55623), storage box
• Packaged Weight: Approximately 0.65 kg to 0.75 kg
• Required Extras: Redding neck sizing bushings and standard #1 shellholder (sold separately)

Who is the Redding 260 Rem Ackley Improved 40° Type S Match Full Length Die Set for?

• Long-range precision shooters loading .260 Remington Ackley Improved 40° ammunition — Provides a dedicated Competition Bullet Seating Die featuring micrometer adjustments in 0.001" increments to establish precise bullet jump and seat depths for competitive disciplines like PRS and F-Class.
• Handloaders seeking tight concentricity and repeatable shoulder bump for custom wildcat brass — Delivers full-length case body resizing and 40° shoulder bump control alongside bushing-controlled neck tension in 0.001" increments via standard 7/8"-14 threaded press interfaces.

Less suitable for: Standard factory .260 Remington chambers with a 20° shoulder angle (which require standard non-Ackley full-length die sets) or handloaders exclusively neck-sizing fireformed brass for a single bolt-action rifle, who are better served by a dedicated Type S neck-sizing die set.