Will the Redding 91531 full length sizing die work with my standard Australian-purchased reloading press?

Yes, the Redding 91531 features an industry-standard 7/8"-14 thread interface, making it fully compatible with all major single-stage and turret reloading presses commonly available in the Australian market, such as those from RCBS, Lee Precision, Hornady, and Lyman. Note that it requires a standard #1 shellholder, which is sold separately.

Is this die suitable for the .260 Ackley Improved (260 AI) or other 6.5mm wildcat cartridges popular in outback target shooting?

No, the Redding 91531 is strictly engineered for standard SAAMI-spec .260 Remington cartridges and is completely incompatible with the .260 Ackley Improved or other 6.5mm variants. Attempting to use this die on wildcat or modified cases can damage your brass and equipment; dedicated .260 AI dies must be used for those specific chamber configurations.

How do I maintain the heat-treated alloy steel construction of the 91531 die during humid Australian coastal conditions?

Constructed from precision-machined alloy steel with a surface hardness of Rc 60-62, the die requires proper care to prevent surface rust during storage in humid environments. Always ensure cases are lightly lubricated during the resizing process to prevent stuck cases, and wipe the interior and exterior of the die down with a light rust-preventative gun oil when storing it on your reloading bench.

260 Remington Die - Redding 91531

The Redding Full Length Sizing Die for .260 Remington (Series A, MPN 91531) is a precision reloading tool engineered to resize fired brass cases and decap spent primers. Machined from heat-treated alloy steel on Hardinge Super-Precision lathes and hand-polished to a surface hardness of Rc 60–62, this die restores fired brass to standard SAAMI factory chamber dimensions. It sizes the case body diameter, resets case headspace and shoulder geometry, decaps the primer, and expands the internal neck diameter to fit standard 0.264" diameter bullets.

Key Features

Full-Length Case Sizing: Resets the entire case body, shoulder position, and neck of fired .260 Remington brass to factory SAAMI tolerances to ensure smooth feeding and extraction across all action types.
Integrated Decapping and Expansion: Includes a complete decapping rod assembly (#33263), steel expander button (#39263), and decapping pin (#01060) to decap spent primers and set internal neck tension in one press stroke.
Precision Machined Steel: Built from case-hardened alloy steel heat-treated to an Rc 60–62 hardness rating, providing high wear resistance and preventing galling during high-volume sizing cycles.
Standard Thread Mounting: Fitted with standard 7/8"-14 threads and a Redding lock ring (#01016), ensuring drop-in compatibility with standard single-stage and turret reloading presses.

Product Specifications

Manufacturer Part Number (MPN): 91531
Cartridge Compatibility: .260 Remington
Bullet Diameter: 0.264"
Thread Pitch: 7/8"-14
Material: Heat-treated, case-hardened alloy steel
Surface Hardness: Rc 60–62
Included Components: Full-length sizing die body, decapping rod assembly (#33263), steel expander ball (#39263), decapping pin (#01060), and 7/8"-14 lock ring (#01016)
Shellholder Required: Standard #1 shellholder (sold separately)

Who is the Redding Full Length Sizing Die for .260 Remington for?

Hunters reloading for multiple rifles or repeating firearms — full-length sizing dies built to standard 7/8"-14 threads reset the shoulder and body dimensions of fired brass to standard SAAMI tolerances, ensuring that handloaded .260 Remington ammunition feeds and extracts reliably through lever-action, semi-automatic, and multiple bolt-action chambers.
Long-range target reloaders requiring consistent chamber cycling — heat-treated alloy steel construction rated to Rc 60–62 surface hardness maintains tight internal tolerances over thousands of cycles, setting consistent neck tension for 0.264" bullets while eliminating chamber-binding issues in precision .260 Remington bolt rifles.

Less suitable for: Fire-formed .260 Ackley Improved (260 AI) brass or alternative 6.5mm cartridges; reloaders working with these calibres require a dedicated Ackley Improved sizing die or calibre-specific full length sizing die.

SKU	RD102507LP
Model #	91531
Brand	Redding
Shipping Weight	0.2000kg

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Redding 91531 Full Length Sizing Die 260 Remington Reloading Tool

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