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Neck tension is one of those little details that separates ammo that just goes bang from ammo that prints tight groups, and this is where a quality bushing earns its keep. The Redding .315 Titanium Nitride bushing drops into any Redding bushing-style neck sizing or Type-S die and gives you precise, repeatable control over how tightly your case neck grips the bullet. Instead of the one-size-fits-all approach of a standard expander, you pick the exact diameter you need and size only what has to be sized.
This bushing starts as heat-treated steel hand-polished to roughly Rc 60-62, then gets a titanium nitride surface treatment that pushes effective hardness up to around Rc 85. That harder, slicker surface means noticeably less friction as the neck passes through, which translates to smoother sizing strokes and less wear over time. The reduced drag also helps keep your brass from getting over-worked, so case necks stay healthier through more reload cycles.
The way to pick a bushing is simple: measure the outside neck diameter of a loaded round with a good micrometer, then subtract about .001 to .002 inches to account for brass springback and proper bullet grip. The .315 size covers a specific slice of that chart, and because these come in .001 inch increments across the full .185 to .368 range, a lot of handloaders end up keeping a few sizes on the bench to fine-tune tension for different bullets and loads. Every bushing is clearly marked with its size so you're never guessing which one you grabbed.
The external dimensions are a standard 1/2 inch O.D. by 3/8 inch long, so this bushing freely interchanges across Redding's bushing-style dies and also plays nicely with other popular brands that accept the same style. If you're already running a Type-S or competition die, this slides right in with no fuss. It's a small part that makes a real difference in consistency, and for anyone chasing accuracy it's a worthwhile addition to the reloading kit.
It freely interchanges in all Redding bushing-style neck sizing dies and Type-S dies thanks to its standard 1/2 inch O.D. by 3/8 inch long body. It also works in many other popular bushing dies that accept the same L.E. Wilson style bushing. If your die is set up to take interchangeable bushings, this one drops right in.
Measure the outside neck diameter of a loaded cartridge with a precision micrometer, then subtract about .001 to .002 inches to allow for brass springback and bullet tension. That number tells you the bushing size to run. Because tension preferences vary, many handloaders keep a couple sizes on hand to fine-tune.
The TiN surface treatment raises the effective surface hardness to roughly Rc 85 and reduces friction during sizing. That means smoother strokes, less effort on the press, and less wear on both the bushing and your brass. It's the premium option over the standard heat-treated steel version.
It sizes only the case neck, which is the whole point of neck bushing dies. By controlling just the neck, you set precise bullet tension without over-working the rest of the case, which helps extend brass life and improve consistency. It does not resize the body or bump the shoulder on its own.
| UPC | 611760763151 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 76315 |
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