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Neck sizing with a bushing die is one of the simplest ways to tighten up your groups, and this .337-inch Redding bushing is how you fine-tune the neck tension on your loaded rounds. Rather than squeezing the neck down more than it needs and working the brass harder than necessary, a bushing sized to your exact brass holds the bullet with just the right grip. That means more consistent seating, longer case life, and the kind of repeatability that shows up on paper.
This one is the titanium nitride version. It starts as heat-treated steel and gets a TiN coating that bumps up the surface hardness and cuts down friction as the neck passes through. In plain terms, you feel a smoother, slicker stroke on the press, and with a little neck lube it slides through clean without leaving marks on your case necks. The bushing measures a standard 1/2-inch outside diameter by 3/8-inch long and is clearly marked with its size so you always know what's loaded in your die.
These drop straight into any Redding bushing-style sizing die, including the Type S line, and they also interchange with L.E. Wilson style bushings. Redding offers the full range in .001-inch steps covering calibers from .17 all the way up to .338, so you can build out a small set and cover exactly the tensions you shoot. To pick the right size, measure the outside neck diameter of a loaded round with a good micrometer and subtract .001 to .002 inch to account for brass spring-back and the tension you want on the bullet.
Made in the USA, this is a single bushing and a genuine Redding component built to the tight tolerances handloaders expect. If you're already running a bushing die and want to tune the .337 neck range, this is the piece that gets you there.
It drops into any Redding bushing-style sizing die, including the Type S full-length and neck sizing dies. It also interchanges with L.E. Wilson style bushings, so it fits a wide range of setups. The bushing uses the standard 1/2-inch O.D. by 3/8-inch length dimensions shared across Redding's bushing line.
Measure the outside neck diameter of a loaded cartridge with a precision micrometer, then subtract about .001 to .002 inch. That accounts for brass spring-back and gives you the neck tension needed to hold the bullet without over-working the brass. If your loaded neck measures right around .338 to .339, this .337 bushing is likely in your range.
Both start as heat-treated steel and share the same dimensions and fit. The titanium nitride version adds a TiN coating that increases the surface hardness and reduces friction during sizing, so the neck passes through smoother. With the neck lubed, it slides clean without marking the brass.
A neck sizing bushing is sized by neck diameter rather than by caliber, so this .337 bushing works with any cartridge whose loaded neck falls in that range once you account for spring-back. Redding offers the full lineup in .001-inch increments covering calibers from .17 up to .338. Pick the bushing that matches your measured brass, not just the nominal caliber.
| UPC | 611760763373 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 76337 |
| Shipping Weight | 0.0188 |
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