Redding 73 Style Steel Bushing/.308

A Redding 73 Style Steel Bushing in .308 diameter is a precision component for neck-sizing reloading dies, designed to help you achieve consistent, tight case fit with minimal sizing effort. These hardened steel bushings are essential if you're working with a Redding Type S or similar bushing-style neck-sizing die and want to fine-tune how snugly your brass fits in the chamber. The .308 bushing works with cases that have been sized to that neck diameter, making it ideal for handloaders who prioritize repeatability and prefer the control that bushing-style sizing offers over full-length or conventional neck dies.

Redding's 73 Style bushings are manufactured from heat-treated steel and hand-polished to a surface hardness of Rc 60–62, which reduces the mechanical effort needed during the sizing stroke and helps extend the working life of your press and reloading setup. The polished sizing diameter means smoother operation and less wear on your brass over many reload cycles—a practical advantage if you're working with premium or hard-to-find brass that you plan to reload multiple times.

Because bushing selection is critical to fit and performance, Redding manufactures these in .001" increments across the full range of common calibers and neck sizes. The .308 bushing is one of the most widely used neck diameters, covering standard .308 Winchester brass and other cartridges in that family. If you're setting up a new die or switching brass sources, having the exact bushing diameter for your cases will give you the consistent, controlled sizing that serious reloaders demand.

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 wear during the reloading cycle
• .308 diameter sized for standard .308 Winchester and similar brass
• Precise .001" increment manufacturing for exact fit
• Compatible with Redding Type S and bushing-style neck-sizing dies

Specifications

Frequently Asked Questions

Will this bushing work with my Redding reloading die?

The Redding 73 Style bushings are designed for use with Redding Type S bushing-style neck-sizing dies and similar setups that accept interchangeable bushings. Verify that your die has a bushing chamber before ordering. If you're unsure about compatibility with a specific die, check your die documentation or contact the manufacturer.

What does the .308 size mean, and how do I know if I need it?

The .308 diameter is the inside dimension of the bushing—the size it will resize your brass neck to. You need this size if you're working with .308 Winchester brass or other cartridges that use .308-inch neck diameter after sizing. If you reload a different caliber or brass source, you may need a different bushing size. Redding manufactures bushings in .001-inch increments from .185 to .368 inches.

How do I choose the correct bushing size for my brass?

Measure the outside diameter of your unsized brass neck with a caliper, then subtract .002 to .003 inches (depending on how tight a fit you want). That gives you the bushing size you need. Many reloaders start conservatively and move to a slightly smaller bushing if they want a tighter chamber fit. If you're new to bushing selection, reference load data or reloading manuals specific to your cartridge.

What's included, and do I need anything else to use this bushing?

You receive the .308 bushing itself. To use it, you'll need a Redding Type S or compatible bushing-style neck-sizing die, a reloading press, and the rest of your standard reloading components (cases, primers, powder, bullets). The bushing simply slides into the die's bushing chamber during setup.