Redding 73 Style Steel Bushing/.329

The Redding 73 Style Steel Bushing/.329 is a precision neck-sizing bushing engineered for reloaders who demand tight, consistent case neck fit. Built from heat-treated steel with a hardened surface finish, this .329" bushing delivers reliable performance when you're working with bottleneck cartridges that call for bushing-die neck sizing. Whether you're handloading rifle ammunition for hunting, competition, or precision shooting, a properly sized bushing ensures your cases fit snugly in the chamber and contributes to better accuracy and consistent velocities.

Redding's 73-style bushings are finished to a surface hardness of Rc 60–62, a specification that matters: the hand-polished sizing diameter reduces friction and effort during the sizing stroke, which means less wear on your press and more comfort during long reloading sessions. This bushing is one of dozens available in Redding's lineup, spanning .185" through .368" in .001" increments—so if you're working with multiple cartridges or ever need to match a different neck diameter, you'll find the right bushing for the job.

If you're new to bushing-die reloading, the concept is straightforward: instead of a fixed sizing die, you swap bushings to match your case neck diameter precisely. This approach gives you fine control over neck tension and is popular among benchrest shooters and anyone pushing for repeatable, tight-tolerance loads. The .329" size fits a specific range of cartridges, so confirm your case neck diameter before ordering.

Key Features

• Heat-treated steel construction for durability and longevity
• Hand-polished sizing diameter with Rc 60–62 surface hardness
• Reduces sizing effort and press strain during the reloading cycle
• Precision fit for bottleneck cartridges requiring bushing-die sizing
• Part of a complete bushing range (.185" to .368") for multi-caliber reloaders

Specifications

Frequently Asked Questions

What calibers use a .329" bushing?

The .329" bushing is sized for cartridges with a case neck diameter of .329". To determine the correct bushing for your cartridge, measure your sized case neck diameter. Redding bushings are available in .001" increments from .185" to .368", so you can match virtually any bottleneck rifle round.

Do I need a special die to use these bushings?

Yes, you'll need a Redding bushing-style neck-sizing die. This bushing is designed to work within that die body; it does not fit standard fixed-sizing dies.

What does the Rc 60–62 hardness specification mean?

The surface hardness rating (Rc 60–62) indicates the durability and wear resistance of the polished sizing diameter. This hardness level reduces friction during sizing, making the reloading stroke smoother and extending bushing life.

Can I use this bushing for progressive reloading?

Bushing-style sizing is primarily used in single-stage and turret presses where you can control neck tension precisely. Compatibility with progressive presses depends on the specific machine and whether it accepts Redding bushing-die systems—check your press manual or contact the manufacturer.