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Neck tension is one of those little details that separates good handloads from great ones, and a quality bushing is how you take control of it. This .366 diameter bushing from Redding is the Titanium Nitride version, built from heat-treated steel and then given a TiN surface treatment to bump up the surface hardness and smooth out the sizing stroke. Each bushing carries a hand-polished finish rated around Rc 60-62, and the size is marked right on it so you always know what you're grabbing out of the box.
These bushings share the same external dimensions across the whole Redding lineup, so the .366 drops into any Redding bushing-style sizing die, including the Type S and Competition neck dies. The dimensions are 1/2 inch outside diameter and 3/8 inch long, and they interchange freely without any fuss. Just drop the bushing in numbers down, snug things up, and you're ready to size.
The real draw of the Titanium Nitride coating is the reduced friction. Case necks slide through with less effort and less drag, which is easier on your brass and your arm over a long loading session. Redding offers bushings in .001 inch increments covering a wide range of calibers, so the .366 is one specific step in that ladder. You pick the size based on your brass and the tension you're after, not a one-size-fits-all guess.
The common method is to measure the outside neck diameter of a loaded round with a micrometer, then subtract .001 to .002 inch to allow for brass spring-back and proper bullet grip. That final number is the bushing size you want. A lot of folks keep two or three sizes on hand so they can fine-tune tension up or down a thousandth at a time to see what their rifle likes best. Made in the USA, this is a precision tool that earns its keep on the bench.
It fits all Redding bushing-style sizing dies, including the Type S and Competition neck sizing dies. All Redding neck bushings share the same 1/2 inch outside diameter and 3/8 inch length, so they interchange freely. Just drop it into the die numbers down and you're set.
Measure the outside neck diameter of a loaded round with a micrometer, then subtract about .001 to .002 inch to account for brass spring-back and bullet tension. That result is your bushing size. The .366 would be the pick if your loaded neck mics around .367 to .368 inch, though it always comes down to your specific brass and the tension you want.
Both versions are heat-treated steel with the same dimensions, but the Titanium Nitride bushing adds a TiN surface treatment that increases surface hardness and reduces sizing friction. That means necks slide through with less effort and less drag on your brass. It's the premium option for reloaders who want the smoothest stroke.
A lot of handloaders keep two or three sizes within a thousandth of each other so they can tune neck tension to taste. Going a thousandth smaller gives you more grip, a thousandth larger gives you less. It's a simple way to experiment and find what shoots best in your rifle without buying a whole new die.
| UPC | 611760763663 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 76366 |
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