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This is the Redding .289 diameter steel neck sizing bushing, part number 73289. It's one of those small reloading pieces that makes a real difference once you start chasing consistency on the bench. Rather than over-working your brass with a standard die, a bushing lets you size the neck down just enough to grip the bullet properly and nothing more. That means longer case life and more uniform neck tension round to round.
The bushing is made from heat-treated steel with the sizing diameter hand polished and hardened to Rc 60-62, which keeps friction and sizing effort down. It measures a 1/2 inch outside diameter and 3/8 inch long, the standard Redding footprint, so it drops freely into any Redding bushing-style neck sizing die or Type S die. Because it isn't locked into place, the bushing self-centers on the neck of the case as it sizes, which is a big part of why these setups produce such low runout.
The .289 refers to the inside sizing diameter, and getting the number right is the whole game. The common method is to measure the outside neck diameter of a loaded round with a good micrometer, then subtract about .001 to .002 inches to account for brass spring back and give you proper bullet grip. If you run moly coated bullets or want a touch more tension, dropping down a thousandth or two is a common move. Every bushing is marked with its size so you're never guessing at the press.
If you already run a Redding Type S die, a Competition bushing die, or similar bushing-style sizer, this one swaps in without any fuss. It also plays nice with other brands of bushing dies that accept the standard Redding and Wilson bushing dimensions. Made in the USA, and built to the same standard reloaders have trusted from Redding for years.
It freely interchanges in all Redding bushing-style neck sizing dies, including the Type S line. The bushing uses the standard 1/2 inch outside diameter by 3/8 inch long dimensions, so it also fits other bushing dies built to accept Redding and Wilson bushings. It drops in and self-centers rather than threading or locking in place.
Measure the outside neck diameter of a loaded cartridge with a precision micrometer, then subtract about .001 to .002 inches. That accounts for brass spring back and leaves the right amount of grip on the bullet. If you shoot moly coated bullets or want more tension, going a thousandth or two smaller is common.
Both share the same external dimensions and interchange in the same dies. The steel bushing is heat treated and hand polished to Rc 60-62 to cut sizing effort. The titanium nitride version adds a surface coating that further increases hardness and reduces friction, which some reloaders prefer for uncoated brass.
Yes. A bushing sizes the neck down just enough to hold the bullet without over-working the brass like a standard expander ball setup can. That gives you more uniform neck tension from round to round and generally longer case life, which is why precision reloaders lean on them.
| UPC | 611760732898 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 73289 |
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