What exact pilot diameter does the Hornady 391919 mandrel feature?

The Hornady 391919 mandrel features a precision pilot diameter machined between .2614

Which specific 6.5mm cartridges can I reload using this mandrel?

This mandrel is strictly engineered for .264 caliber rifle cartridges and works perfectly for popular Australian precision shooting rounds such as 6.5 Creedmoor, 6.5 PRC, .260 Remington, and 6.5x55mm Swedish. It cannot be used with sub-calibers or larger bores like 7mm or .308 without changing to the appropriate Hornady mandrel size.

Is this mandrel compatible with neck turning tools from other brands like Sinclair or K&M?

No, the Hornady 391919 is designed specifically for the proprietary interface of the Hornady Neck Turning Tool. It is not directly interchangeable with neck turning tools from other manufacturers unless modified, so it is best paired with Hornady equipment.

What preparation is required for my brass before using this neck turning mandrel?

Prior to neck turning, your brass must be properly sized and expanded to an inside diameter of approximately .262

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

No, the Hornady 391919 is an entirely mechanical, non-powered steel reloading component. Therefore, electrical compliance marks such as SAA/RCM and 240V mains requirements do not apply to this product.

How should I maintain this steel mandrel to prevent rust in a humid Australian workshop?

Because the mandrel is manufactured from precision-hardened steel, it should be kept clean and lightly oiled after each reloading session to prevent corrosion. Storing it in a dry reloading room or pairing it with a Hornady Canister Dehumidifier in your storage area will help protect the tight tolerances from moisture over time.

6.5mm Neck Turning Mandrel - Hornady 391919

The Hornady Neck Turning Tool Mandrel (MPN: 391919) is a dedicated internal guide arbor engineered for handloaders preparing .264 calibre / 6.5mm cartridge brass. Made from precision-machined, hardened steel, this manual reloading component installs directly into the cutter head of the Hornady Neck Turning Tool. It firmly supports the internal diameter of the case neck, allowing the outside turning cutter to shave high spots and eliminate wall thickness variations for improved concentricity and uniform neck tension.

Key Features

Internal Neck Support: Serves as a rigid internal arbor within the Hornady Neck Turning Tool cutter head to support the brass wall during cutting.
Precision Ground Fit: Features a pilot diameter machined to approximately .2614" to .2615" to ensure an exact slip fit inside properly sized case necks.
Durable Construction: Built from precision-machined, hardened steel to resist wear during continuous brass prep cycles.
Concentricity Enhancement: Facilitates the removal of exterior neck thickness irregularities to reduce bullet runout and ensure consistent release.
Mechanical Simplicity: Functions entirely as a manual handloading accessory requiring no electrical power.

Specifications

Brand: Hornady
Model Number (MPN): 391919
Calibre Compatibility: .264 / 6.5mm rifle cartridges (including 6.5 Creedmoor, 6.5 PRC, .260 Remington, and 6.5x55mm Swedish)
Pilot Diameter: .2614" to .2615"
Material: Hardened steel
Packaged Weight: Approximately 30 g to 50 g (1 oz to 2 oz)
Tool Compatibility: Hornady Neck Turning Tool interface (MPN: 050096)

Who is the Hornady 391919 Neck Turning Tool Mandrel for?

Precision long-range handloaders of 6.5mm rifle cartridges — Requires a precision pilot matched to .264 / 6.5mm cartridge cases (such as 6.5 Creedmoor or 6.5 PRC) to guide this neck turning tool mandrel smoothly through the neck during brass prep.
Benchrest and PRS competitors seeking uniform neck tension — Relies on the .2614" to .2615" pilot diameter of this neck turning mandrel to establish an exact internal slip fit, ensuring uniform case wall thickness across every turned brass neck.

Less suitable for: Handloaders turning cases other than .264 / 6.5mm or utilizing non-Hornady neck turning tools; sub-calibres (such as 6mm / .243) or larger bores (such as 7mm or .308) require dedicated calibre-specific neck turning mandrels matched to their respective bore diameters and tool systems.

SKU	HN102577LP
Model #	391919
Brand	Hornady
Shipping Weight	0.0200kg

What our Customers are Saying

We Also Recommend

Lee Breech Lock Challenger Kit Iii - With Auto Be

Don't pay $488.95 $414.95 15.13% OFF

Sellier & Bellot 300 Winchester Magnum Unprimed Br

$57.95

A-zoom Perfect 45 Acp Striker Snap Caps Centering

Don't pay $22.95 $15.00 34.64% OFF

Grovtec Gtsw07 Machine Screw Fore End Swivel Set 1

$26.95

Recommended Products

Redding 07600 Sizing Die Wax Reloading 2 Oz Tin

$31.95

Redding 27446 Instant Indicator Headspace Comparat

Don't pay $425.95 $361.95 15.03% OFF

Redding 33263 Decapping Rod Assembly 6.5mm Creedmo

$44.95

Redding 68531 260 Remington Deluxe Die Set 3-Die M

Don't pay $401.95 $340.95 15.18% OFF

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.

Hornady 391919 Neck Turning Tool Mandrel 6.5mm Caliber Steel

Secure Payment Methods