Redding 73 Style Steel Bushing/.340

The Redding 73 Style Steel Bushing in .340 is a precision neck-sizing component designed for handloaders who demand consistency and control over case neck diameter. Built from heat-treated steel and hand-polished to a surface hardness of Rc 60–62, this bushing reduces the sizing effort required during the reloading process—a practical advantage when you're working through dozens or hundreds of rounds. The .340 diameter makes it suited for cartridges in that neck range, fitting Redding's 73 series press dies.

Redding's 73 style bushings are the standard choice for reloaders prioritizing repeatability and minimal case neck work. The polished steel construction keeps friction low, protecting case necks from unnecessary wear while delivering uniform sizing stroke after stroke. Whether you're developing loads for precision rifle competition, long-range hunting, or volume shooting, a properly sized neck is fundamental to case life and accuracy.

Redding manufactures these bushings in .001" increments across the full range from .185" through .368" diameter, so you can find the exact size your cartridge demands. The .340 bushing is one of the standard offerings and is identified by the last three digits of the Redding part number.

Key Features

• Heat-treated steel construction for durability and longevity
• Hand-polished sizing surface (Rc 60–62 hardness) reduces sizing force and case neck damage
• .340" diameter for appropriate cartridge neck ranges
• Fits Redding 73 series neck-sizing dies
• Tight manufacturing tolerances ensure consistent neck diameter

Specifications

Frequently Asked Questions

What Redding dies does this bushing fit?

The .340 bushing is designed for Redding 73 series neck-sizing dies. Confirm your die model before ordering to ensure compatibility.

What cartridges use a .340 neck bushing?

The .340 diameter is suitable for cartridges with a .340" neck. Verify your specific cartridge's neck diameter against the bushing size to confirm the correct fit.

Why is hand-polished steel important for a reloading bushing?

The polished surface and Rc 60–62 hardness reduce friction during sizing, lowering the force needed to press cases through the die. This gentler approach minimizes case neck work-hardening and extends case life across multiple reloading cycles.

Are Redding 73 bushings available in other sizes?

Yes. Redding manufactures these bushings in .001" increments from .185" through .368" diameter, allowing reloaders to select the precise neck size their cartridge requires.