Do I need to apply lubrication when using this steel size button?

Yes, because the Redding 41373 is made from precision-machined, hardened tool steel rather than carbide, it requires inside-neck lubrication during the withdrawal stroke. Applying dry mica or appropriate case neck lube prevents high drag force, brass galling, and unwanted case stretching.

Does this reloading accessory require any electrical compliance or SAA/RCM certification for use in Australia?

No electrical compliance or SAA/RCM certification is required because the Redding 41373 is a purely mechanical, non-powered reloading tool component with a 0W power requirement. It is freely distributed and used across Australian reloading benches for preparing big-bore safari and hunting ammunition.

When should I consider upgrading from this standard size button to the Redding Carbide version?

If you plan on conducting high-volume reloading and wish to eliminate the need for inside-neck lubrication, you should consider upgrading to the Redding Carbide Size Button Kit #49373. The carbide option also offers smoother, self-centring action to help minimise neck runout on precision rounds.

.375 Size Button - Redding 41373

Q: What dies are compatible with the Redding 41373 .375 Calibre Size Button?

The Redding 41373 size button is designed to thread onto standard decapping rods and stems found in Redding Full-Length Sizing Dies, Neck Sizing Dies, and Type "S" Bushing Sizing Dies. It is specifically manufactured for .375 calibre bottleneck rifle cartridges such as the .375 H&H Magnum and .375 Ruger.

The Redding .375 Calibre Steel Size Button (MPN: 41373) is a precision-machined, hardened tool steel die expander button designed to standardise the internal neck dimensions of resized metallic rifle brass. Engineered to thread directly onto standard Redding decapping rods and stems, it serves as a direct factory replacement or spare component across standard Redding Full-Length Sizing Dies, Neck Sizing Dies, and Type "S" Bushing Sizing Dies. This non-powered, mechanical reloading accessory expands fired or sized case necks to provide consistent, uniform neck tension specifically for .375-inch diameter projectiles across standard bottleneck cartridges such as .375 H&H Magnum, .375 Ruger, and .375 Remington Ultra Mag.

Key Features

Calibre-Specific Internal Expansion: Accurately expands the inside neck diameter of rifle cases to establish uniform internal dimensions and correct bullet tension for .375 calibre projectiles.
Precision Hardened Tool Steel: Manufactured from polished, hardened steel to minimise brass galling during the press cycle when used with appropriate inside-neck lubrication.
Redding Die Compatibility: Threads onto factory decapping assemblies across standard Redding Full-Length, Neck, and Type "S" Bushing sizing dies.
Mechanical Operation: Fully manual, non-powered (0W) reloading component requiring no electrical input or compliance interfaces.

Product Specifications

Brand: Redding Reloading Equipment
Manufacturer Part Number (MPN): 41373
Calibre Compatibility: .375 calibre (.375-inch bullet diameter)
Material: Hardened tool steel
Die System Compatibility: Redding Full-Length, Neck Sizing, and Type "S" Bushing Dies
Operating Requirements: Inside-neck lubrication (such as dry mica or case sizing lubricant)
Power Consumption: 0W (Fully mechanical)

Who is the Redding 375 Cal Size Button for?

Big-bore safari and hunting rifle reloaders — requiring consistent neck tension across heavy-recoiling .375 calibre hunting brass, such as .375 H&H Magnum or .375 Ruger, using a standard steel expander button that fits factory Redding sizing assemblies.
Precision .375 calibre rifle handloaders — maintaining or replacing worn or damaged factory size buttons on Redding decapping rods to ensure uniform internal neck diameters for .375-inch projectiles.

Less suitable for: High-volume reloaders seeking dry, lube-free neck expansion without inside-neck lubricant, or case-formers stepping up sub-calibre brass to .375 calibre; these operations require a free-floating carbide size button kit or a dedicated tapered expander mandrel to prevent case stretching and high drag force.

SKU	RD41641LP
Model #	41373
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 41373 Steel Size Button .375 Calibre Reloading Tool

Secure Payment Methods