What dies are compatible with the Redding 73243 Neck Sizing Bushing?

The Redding 73243 bushing is compatible with all Redding bushing-style dies, including Type S Neck Sizing Dies, Type S Full Length Sizing Dies, and Competition Bushing Neck Sizing Dies. Additionally, it is fully interchangeable with standard Wilson-style neck sizing dies. It features standard external dimensions of 1/2 inch outer diameter by 3/8 inch length.

How do I calculate the correct bushing size and what are the brass wall thickness limits?

To determine the proper bushing diameter, measure the outside neck diameter of a loaded cartridge and subtract 0.001 inches to account for brass spring-back and achieve standard neck tension. If your case neck wall thickness varies by more than 0.002 inches, standard bushing sizing without an expander button can result in inconsistent internal tension, meaning cases may need to be neck-turned.

Do I need to use case neck lubrication with this heat-treated steel bushing?

Yes, Redding recommends applying a light case neck lubricant when using heat-treated steel bushings to prevent galling and reduce friction during the sizing stroke. If you are looking for an alternative that requires minimal to zero lubricant for high-volume reloading, Redding also manufactures Titanium Nitride-coated bushings which feature an increased surface hardness.

What is the material composition and internal finish quality of the Redding 73243 bushing?

The Redding 73243 is manufactured from heat-treated steel and features a hand-polished internal surface rated at approximately Rockwell Rc 60-62. This mirror polish minimizes friction and sizing effort while extending the overall tool life of the bushing.

Neck Sizing Bushing - Redding 73243

The Redding .243 Heat-Treated Steel Neck Sizing Bushing (MPN: 73243) is a precision reloading component designed to accurately size the outside neck diameter of cartridge brass. Featuring an internal sizing diameter of 0.243 in, this bushing regulates neck tension without overworking brass case necks. Built with standard external dimensions of 1/2 in (12.7 mm) outer diameter by 3/8 in (9.525 mm) length, it floats freely within Redding bushing-style dies to self-centre along the cartridge neck axis during the sizing stroke.

Key Features

Internal Sizing Dimension: Precision-machined to a 0.243 in inside diameter to set specific neck tension and chamber neck clearance.
Heat-Treated Steel Construction: Hardened to Rockwell Rc 60–62 with a hand-polished internal surface to minimise sizing friction and prevent premature tool wear.
Self-Centring Profile: Designed with standard 1/2 in O.D. by 3/8 in length dimensions to freely float and self-align in compatible sizing dies.
Die Interface Compatibility: Fully compatible with Redding Type S Neck Sizing Dies, Type S Full Length Sizing Dies, Competition Bushing Neck Sizing Dies, and standard Wilson-style neck sizing dies.
Lubrication Requirement: Standard heat-treated steel construction is designed for use with case neck lubricant to ensure smooth sizing strokes and prevent brass galling.

Product Specifications

Inside Diameter (Sizing Diameter): 0.243 in
Outer Diameter: 1/2 in (12.7 mm)
Length: 3/8 in (9.525 mm)
Material: Heat-treated steel
Surface Hardness: Rockwell Rc 60–62 (hand-polished internal finish)
Part Number (MPN): 73243

Who is the Redding .243 Heat-Treated Steel Neck Sizing Bushing for?

Precision Long-Range Match Rifle Reloaders — requires an exact 0.243 in internal diameter to establish uniform bullet grip and consistent release tension on match-grade cartridge cases.
Benchrest Handloaders — benefits from the hand-polished Rc 60–62 heat-treated steel finish and self-centring 1/2 in outer diameter body to maintain minimal runout across brass sizing cycles.

Less suitable for: Cartridge brass where neck wall thickness varies by more than 0.002 in, which requires neck-turning equipment or sizing dies equipped with an internal expander button to maintain consistent internal neck tension.

SKU	RD41763LP
Model #	73243
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 49356 Carbide Size Button Kit .35 Calibre

$99.95

Redding 96020 G-rx Large 32 Oz High Density Polyet

$22.95

Rcbs R9803 Expander Decapping Unit 226 Calibre Ste

$37.95

Redding 74415 Small Base Body Die For 6.5mm 284 Wi

$127.95

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 73243 Steel Neck Sizing Bushing 243 In Diameter

Secure Payment Methods