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Neck tension is one of those details that separates loads that just go bang from loads that print tight groups, and this .313 Redding bushing is how you take control of it. It drops into any Redding bushing-style neck sizing die and works with Wilson-style dies too, so you can size only as much as you need instead of overworking your brass with a standard full-length die.
Redding builds these from heat-treated steel, then adds a titanium nitride surface treatment that bumps the surface hardness way up and cuts down on sizing friction. The result is a smoother stroke on the press and a bushing that holds its dimensions over thousands of rounds. The sizing surfaces are hand-polished, so brass passes through cleanly without that dragging feel you get from rougher tooling. That slick coating is also easy to spot by its bronze-gold color.
This is the .313 diameter, part number 76313, and it carries the same external dimensions as every other bushing in the lineup: 1/2 inch outside diameter by 3/8 inch long. That means it freely interchanges with other bushings in the same die body, so you can keep a few sizes on hand and swap as your brass or bullet choice changes. To find your number, measure the outside neck diameter of a loaded round and subtract about .001 to .002 inch to account for brass spring-back. Get that right and you set just enough tension to hold the bullet securely without excessive resizing.
Redding offers bushings in .001 inch steps from .185 through .368, covering everything from .17 caliber up through .338. The .313 lands in the range handloaders reach for on cartridges with necks sized around that mark, and it's a popular pick for precision rifle shooters who want repeatable results round after round. If you're already running a Redding or Wilson bushing die, this is a simple add that pays off at the bench and on the target.
Bushings are chosen by your brass, not by caliber name alone. Measure the outside neck diameter of a loaded cartridge and subtract about .001 to .002 inch for brass spring-back to find your number. If that math lands on .313, this is the bushing you want.
It fits all Redding bushing-style neck sizing dies and freely interchanges with Wilson-style bushings as well. The external dimensions are a standard 1/2 inch outside diameter by 3/8 inch long, which is why it swaps so easily. It will not work in standard non-bushing sizing dies.
The TiN treatment goes over heat-treated steel to raise the surface hardness and reduce friction as brass passes through. That means a smoother sizing stroke and a bushing that keeps its dimensions over a long service life. The coating gives the bushing its distinctive bronze-gold color.
Both share the same dimensions and interchange in the same dies, so performance-wise they're close. The titanium nitride version adds extra surface hardness and lower sizing friction, which many precision handloaders prefer for a slicker feel and longer wear. Either one lets you tune neck tension precisely.
| UPC | 611760763137 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 76313 |
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