Redding 73 Style Steel Bushing/.300

The Redding 73 Style Steel Bushing/.300 is a precision neck-sizing bushing engineered for reloaders who demand tight, consistent case neck dimensions. This .300" bushing is part of Redding's extensive lineup of heat-treated steel bushings, each hand-polished to exacting standards and built to withstand the rigors of high-volume reloading. Whether you're fine-tuning loads for a precision rifle or maintaining tight shot groups at the range, a properly sized neck is the foundation of repeatable ammunition—and this bushing delivers the control you need.

Redding's 73 style bushings are known for their durability and ease of use. The sizing diameters are hand-polished and heat-treated to a surface hardness of Rc 60-62, which reduces sizing effort and extends bushing life compared to softer alternatives. The polished surface means less friction during the sizing stroke, preserving your press and your brass. Available in .001" increments across the full range of sizing diameters, Redding bushings let you dial in neck tension with surgical precision.

If you're already running a Redding sizing die that accepts 73 style bushings, adding this .300" bushing to your setup takes minutes. It's a simple, direct way to expand your reloading capabilities without buying an entire new die—ideal if you're handloading multiple calibers or experimenting with load development.

Key Features

• Heat-treated steel construction with Rc 60-62 surface hardness for durability and minimal sizing effort
• Hand-polished sizing diameter for consistent, smooth operation
• Designed for use with Redding 73 style die bodies
• .300" nominal bushing size for precision neck sizing
• Part of Redding's comprehensive bushing lineup available in .001" increments

Specifications

Frequently Asked Questions

Will this bushing work with my Redding die?

This bushing is designed for Redding 73 style die bodies. If your die accepts 73 style bushings, this .300" bushing will fit. If you're unsure about your die's compatibility, check your die documentation or contact Redding directly.

What's the difference between a .300" and other bushing sizes?

Redding offers bushings in .001" size increments across the available range. The .300" bushing is sized for specific calibers or load development goals. Choosing the correct bushing size ensures proper neck tension and consistent case-to-bullet fit.

How do I know which bushing size I need?

Bushing selection depends on your caliber, bullet diameter, and desired neck tension. Most reloaders refer to their specific cartridge's specifications or consult Redding's bushing sizing guides to identify the appropriate size for their application.

Is this bushing suitable for high-volume reloading?

Yes. The heat-treated steel and polished finish are engineered to handle extended reloading sessions with minimal wear, making these bushings a reliable choice for serious handloaders.