Will this die work with standard .260 Remington factory brass or other 6.5mm cartridges like the 6.5 Creedmoor?

No, this die is specifically cut with chamber reamers to match the .260 Remington Ackley Improved 40-degree shoulder specification. It is not suitable for standard .260 Remington 20-degree cases, 6.5 Creedmoor, or other 6.5mm cartridges without using their own dedicated dies.

Can I use the Redding 55623 competition seating die with heavily compressed powder loads?

The manufacturer explicitly advises against using competition seating dies with heavily compressed powder loads. Excessive upward pressure against the seating stem and micrometer mechanism can cause damage or lead to inconsistent seating depths, meaning a standard seating die is recommended for heavy powder charges.

What shellholders are compatible with this 7/8"-14 threaded seating die on an Australian reloading bench?

This die features a standard 7/8"-14 external threaded body compatible with most single-stage and progressive reloading presses used in Australia. It requires a standard #1 shellholder (Redding Part #11001) or a Redding Competition Shellholder #11601, which are sold separately.

Does this Redding competition seating die include an integrated crimp feature for my long-range loads?

No, this is purely a precision bullet seating die and does not incorporate a roll or taper crimp ring. If your specific load requires a crimp, you will need to perform that as a separate step using a dedicated crimping die.

260 Rem Ackley Die - Redding 55623

The Redding 260 Rem Ackley Improved 40° Competition Seating Die (MPN 55623) is a specialised reloading tool engineered for handloaders seeking minimal radial runout and precise cartridge overall length (COAL). Built with a standard 7/8"-14 threaded body, this die fits standard reloading presses and uses an internal, precision-ground sliding chamber sleeve to support both the cartridge case and the bullet in perfect alignment before seating begins. Depth adjustments are controlled via an integrated micrometer head graduated in 0.001" increments (0.050" per full revolution), allowing exact, repeatable bullet seating depth changes without guesswork.

Key Features

Patented Alignment Sleeve: The precision-machined sliding sleeve fully captures and aligns the .260 Remington Ackley Improved case neck and 0.264" (6.5 mm) bullet simultaneously prior to seating.
Micrometer Depth Adjustments: Features a non-clicking, infinitely adjustable micrometer graduated in 0.001" steps with a re-settable "zero" reference for exact seating depth management.
Free-Floating Seating Stem: Comes fitted with a precision-ground standard seating stem (Part #55046) designed to seat 0.264" projectiles concentrically without deforming bullet ogives.
Standard Press Interface: Features standard 7/8"-14 external threads for direct compatibility with standard single-stage and turret reloading presses.
Optional Stem Compatibility: Compatible with Redding's optional VLD seating stem (Part #55746) for very low drag projectile profiles.

Product Specifications

Brand / Manufacturer: Redding Reloading Equipment
Manufacturer Part Number (MPN): 55623
Cartridge Compatibility: .260 Remington Ackley Improved (40° shoulder)
Bullet Calibre: 0.264" (6.5 mm)
Die Thread Size: 7/8"-14 standard thread
Micrometer Adjustment Increments: 0.001" (0.050" per revolution)
Shellholder Fitment: Redding #1 Shellholder (#11001) or Competition Shellholder #11601 (sold separately)
Crimp Function: Dedicated seating only (no crimp ring)

Who is the Redding 260 Rem Ackley Improved 40° Competition Seating Die for?

Precision rifle handloaders — requires the 0.001" micrometer graduations and straight-line internal sleeve of this 6.5mm competition bullet seating die to achieve exact cartridge overall length across .260 Rem AI load batches.
Benchrest competitors — relies on the sliding alignment sleeve to eliminate radial bullet runout when seating 0.264" (6.5 mm) projectiles on standard 7/8"-14 threaded reloading presses.
Long-range hunters — utilizes the re-settable micrometer head with 0.050" travel per turn to rapidly adjust seating depth in precise 0.001" steps when developing tuned loads for .260 Remington Ackley Improved 40° rifles.

Less suitable for: Handloaders loading standard 20° shoulder .260 Remington cases or heavily compressed powder charges, which require a standard non-micrometer seating die or dedicated standard-shoulder die set to prevent mechanical strain on the micrometer assembly.

SKU	RD41656LP
Model #	55623
Brand	Redding
Shipping Weight	1.0000kg

What our Customers are Saying

We Also Recommend

Lee Breech Lock Challenger Kit Iii - With Auto Be

$414.95

Pro-shot 1ps-38-17 Stainless Steel Rifle Cleaning

$122.95

Kleenbore Cp16b Cotton Cleaning Patches 1.25 Inch

$32.95

Recommended Products

Redding 38415 Type S Match Neck Die Set 6.5 284 Wi

$501.95

Rcbs Sizer Expander Seater Die Set Roll Crimp Stra

$294.95

Redding 84135 270 Winchester Deluxe 3 Die Set For

$214.95

Lyman Ly-243 .243 Winchester Rifle 2 Die Set 7/8-1

$167.95

Welcome to Xhunter Australia. By accessing and using our website (www.xhunter.com.au) and purchasing from our online store, you agree to be bound by the following Terms and Conditions. Please read them carefully before proceeding.

1. Eligibility

By agreeing to these Terms and Conditions, you confirm that:

• You are at least 18 years of age.
• You are legally capable of entering into a binding contract under Australian law.
• You will not purchase any restricted or controlled items unless legally permitted to do so.

2. Product Information

• All products listed are subject to availability.
• Product descriptions, specifications, and pricing are subject to change without notice.
• We make every effort to display products accurately, although we do not guarantee that all images or content are error-free.

3. Orders and Payments

• All orders are subject to acceptance and confirmation.
• Prices are in AUD and include GST unless otherwise stated.
• We reserve the right to cancel or refuse any order at our sole discretion.
• Full payment is required before dispatch.

4. Authority to Leave (ATL) and Delivery

• By default, all orders are shipped with Authority to Leave (ATL).
• If you require Signature on Delivery, please contact us prior to purchasing. Additional charges apply.
• If an order is returned to us due to failed delivery or non-receipt when ATL is not permitted, a $25 return processing fee must be paid before reshipment or refund.

5. Returns and Refunds

• Please refer to our full Returns Policy on the website.
• Returned items must be in original, resalable condition unless faulty.
• A restocking fee may apply if an item is not in reselling condition.
• Change-of-mind returns may not be accepted for clearance or custom-ordered items.

6. Firearms and Restricted Items

• You must comply with all relevant State and Federal laws for regulated products.
• You are responsible for ensuring proper licences and permits are held.
• We reserve the right to request proof of eligibility before dispatch.

7. Limitation of Liability

• Xhunter Australia is not liable for direct or indirect losses arising from the use or misuse of products.
• We are not responsible for any unauthorised modifications or incorrect application of products.

8. Manufacturer Warranty Support

Some products sold by Xhunter Australia include a manufacturer’s warranty (for example, limited lifetime warranties). These warranties are provided solely by the manufacturer and are separate from the consumer guarantees under Australian Consumer Law.

Where a manufacturer provides a warranty:

A. The warranty is offered and honoured by the manufacturer, not by Xhunter Australia, unless expressly stated otherwise.
B. Customers may be required to contact the manufacturer directly and comply with their warranty process, which may include overseas product assessment.
C. Proof of purchase is required to lodge a manufacturer warranty claim.
D. Assistance provided by Xhunter Australia in lodging warranty claims is a goodwill service only and does not imply liability for warranty outcomes or decisions.

Nothing in this clause limits your rights under Australian Consumer Law.
Xhunter Australia remains responsible for providing legally required remedies for products that fail to meet the consumer guarantees of acceptable quality, fitness for purpose, and reasonable durability.

9. Privacy

Your personal information is collected, used, and stored in accordance with our Privacy Policy.

10. Intellectual Property

All text, graphics, logos, and images on this website remain the property of Xhunter Australia and are protected by copyright laws.

11. Amendments

We may update or modify these Terms and Conditions at any time without prior notice. Continued use of our site constitutes acceptance of any updated Terms.

12. Governing Law

These Terms and Conditions are governed by the laws of Victoria, Australia. Any disputes will be handled exclusively by the courts of Victoria.

13. 18+ Age Requirement

By placing an order, you confirm that you are at least 18 years of age and legally entitled to purchase the products ordered. We may cancel any order that breaches this requirement.

Redding 55623 Competition Seating Die 260 Rem Ackley Improved

Secure Payment Methods