Does the Redding Type S Neck Die 71406 come with the sizing bushing included in the box?

No, the sizing bushings are sold separately to allow handloaders to select the exact diameter needed for their brass neck wall thickness. The box includes the die body, decapping rod assembly, standard steel expander button, decapping pin retainer, decapping pin, and lock ring.

Can I use this 7/8"-14 threaded die with standard factory .22-250 Remington brass right out of the box?

No, this die is exclusively engineered for the .22-250 Remington Ackley Improved 40-degree shoulder chamber. Standard factory .22-250 Remington brass must be properly fire-formed in your rifle chamber before it can be neck-sized with this tool.

At what point do I need to transition from this neck sizing die to a full-length sizing or body die?

Neck-sizing only works well for brass fired from the exact same bolt-action rifle, typically for the first 3 to 5 firings. Once fired brass experiences shoulder growth or case expansion that results in stiff bolt closure, you will need to use a body die or a full-length sizing die to bump the shoulder back 0.001" to 0.002".

Does this mechanical reloading die require any electrical compliance certification for use in Australia?

As a purely mechanical reloading tool with no electrical components or mains power requirements, it does not need Australian 240V SAA or RCM regulatory approvals. It is ready for immediate setup on any standard single-stage or turret reloading press using industry-standard 7/8"-14 threads.

22-250 AI Neck Die - Redding 71406

The Redding Type S - Bushing Style Neck Sizing Die (MPN: 71406) is engineered for precision handloading of .22-250 Remington Ackley Improved cartridges featuring a 40° shoulder angle. Designed to size .224" diameter projectile brass fire-formed to a specific bolt-action chamber, this die adjusts neck tension without sizing the case body or altering the shoulder. Built with standard 7/8"-14 threading, it mounts directly into standard single-stage and turret reloading presses.

Interchangeable Bushing System: Utilises freely self-centring Redding sizing bushings (available separately in 0.001" increments) to minimise runout and set precise bullet grip without overworking brass.
Dual Internal Sizing Configuration: Includes a standard steel expander button for commercial brass, which can be swapped for the included decapping pin retainer to size case necks entirely from the outside without internal expansion.
Adjustable Neck Sizing Depth: The adjustable decapping rod allows handloaders to size the full neck length or leave a partial unsized section at the neck base for enhanced chamber alignment.
Press and Shellholder Compatibility: Built with industry-standard 7/8"-14 threads and pairs with a standard Redding #1 shellholder (or Competition Shellholder #1) for consistent bench operation.

Specifications

Manufacturer Part Number (MPN): 71406
Calibre Compatibility: .22-250 Remington Ackley Improved (40° shoulder angle)
Bullet Diameter: .224"
Die Thread Size: 7/8"-14
Compatible Shellholder: Redding Shellholder #1 (part #11001) or Redding Competition Shellholder #1 (part #11601)
Included Hardware: Die body, decapping rod assembly (#11226), steel expander button (#39223), decapping pin retainer (#10195), decapping pin (#01060), and lock ring (#01016)

Who is the Redding 22-250 Rem Ackley Improved 40° Type S - Neck Die for?

Precision Handloaders — Requires exact neck tension control for fire-formed .22-250 Ackley Improved brass matching a 40° shoulder angle, allowing users of this reloading neck sizing die to use self-centring bushings without disturbing established case body dimensions.
Target Shooters and Long-Range Hunters — Needs to extend cartridge brass lifespan and minimise concentricity runout across repeated firings of .224" diameter projectile cases dedicated to a single bolt-action rifle chamber.

Less suitable for: Standard factory .22-250 Remington cases with a 28° shoulder prior to fire-forming, semi-automatic, pump-action, or lever-action rifles requiring full-length resizing, or cases experiencing stiff bolt closure due to body expansion after 3 to 5 firings, which instead require a full-length sizing die or dedicated body die.

SKU	RD41735LP
Model #	71406
Brand	Redding
Shipping Weight	1.0000kg

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Redding 71406 Neck Die 22-250 Rem Ackley Improved 40 Bushing

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