What dies are compatible with the Redding 73274 neck sizing bushing?

The Redding .274 Heat-Treated Steel Neck Sizing Bushing features standard 1/2 inch outer dimensions with a 3/8 inch length. It is designed to freely interchange across all Redding Bushing-Style Dies, including Type S Neck Sizing Dies, Type S Full Length Sizing Dies, Competition Neck Sizing Dies, as well as Wilson-style bushing dies.

Do I need to lubricate case necks when using this heat-treated steel bushing?

Yes, unlike Titanium Nitride coated alternatives, this heat-treated steel bushing requires case neck lubrication prior to sizing. Applying proper case neck lube ensures smooth operation and prevents brass galling or sticking inside the hand-polished Rockwell Rc 60-62 interior surface.

Are there any Australian electrical or regulatory compliance certifications required for this tool?

No electrical or regulatory certifications are required for the Redding 73274 bushing. As a completely passive, mechanical reloading component, it does not involve 240V power, Australian electrical plugs, or SAA/RCM regulatory approvals for use in Australian workshops.

How do I determine if the 0.274 inch sizing diameter is correct for my handloads?

To confirm sizing compatibility, measure the outside neck diameter of a loaded completed round with a precision micrometer and subtract 0.001 to 0.002 inches to account for brass spring-back. If your target measurement differs from 0.274 inches, you will need to select an alternative Redding bushing size available in 0.001 inch increments.

Neck Sizing Bushing - Redding 73274

The Redding .274 Heat-Treated Steel Neck Sizing Bushing (MPN: 73274) is a precision metallic cartridge reloading component designed to size cartridge case necks to an exact inside diameter of 0.274 inches. Built to standard external dimensions of 1/2 in (12.7 mm) outer diameter by 3/8 in (9.525 mm) length, this bushing freely interchanges across all Redding Bushing-Style Dies—including Type S Neck Sizing, Type S Full Length Sizing, and Competition Neck Sizing Dies—as well as Wilson-style bushing dies. It allows handloaders to precisely control neck tension and bullet grip without using an internal expander ball, preventing brass overworking and minimizing case runout.

Key Features

Precision Dimensions: Features an inside sizing diameter of 0.274 inches to deliver exact neck dimensions and repeatable neck tension.
Durable Construction: Manufactured from heat-treated steel hand-polished to a surface hardness of approximately Rockwell Rc 60–62, minimizing friction and sizing effort.
Universal Interface: Standard 1/2-inch outer diameter fits all Redding Type S, Competition Bushing dies, and Wilson-style bushing cavities.
Clear Size Markings: Laser-engraved or stamped with .274 for quick identification on the reloading bench.
Lightweight Mechanical Part: Passive reloading tool weighing approximately 0.05–0.1 lb (20–45 g) with no electrical power requirements.

Product Specifications

Inside Sizing Diameter: 0.274 inches
External Dimensions: 1/2 in (12.7 mm) OD x 3/8 in (9.525 mm) Length
Material: Heat-treated steel
Surface Hardness: Rockwell Rc 60–62
Weight: 0.05–0.1 lb (20–45 g)
Compatibility: Redding Type S Neck & Full Length Dies, Competition Neck Sizing Dies, Wilson-style bushing dies

Who is the Redding .274 Heat-Treated Steel Neck Sizing Bushing for?

Precision rifle competitors handloading 6mm cartridges — sizing brass with an exact 0.274-inch inside diameter to establish optimal 0.001 to 0.002-inch neck tension on loaded cartridge necks without overworking the brass.
Benchrest shooters seeking minimized concentricity runout — utilizing a heat-treated steel neck sizing bushing hardened to Rockwell Rc 60–62 within a standard 1/2-inch outer diameter die cavity to eliminate the need for an expander ball and maintain precise neck alignment.

Less suitable for: Reloaders seeking a dry-sizing process without case lubrication, who should consider a Titanium Nitride (TiN) coated bushing to prevent brass galling, or those using non-bushing standard dies and oversized 50 BMG dies requiring dedicated non-standard die tooling.

SKU	RD41767LP
Model #	73274
Brand	Redding
Shipping Weight	1.0000kg

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Redding 73274 Neck Sizing Bushing Steel 0274 In

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