Description
If you've moved up to a bushing-style neck die, this is the piece that does the real work. The L.E. Wilson Steel Neck Sizer Die Bushing in .270 slips into your Wilson neck sizing die (or Wilson bushing-type full-length die) and sizes the outside of the case neck down to grip the bullet. Because there's no expander ball dragging back through the neck, you get better concentricity and less brass worked than a standard setup, which is exactly why precision reloaders lean on this system.
Wilson has built these bushings the same careful way for decades, machining them from hardened tool steel and running each one through a multistep process so the dimensions stay honest. The size stamped on the bushing refers to the middle, which is reamed with a .003 taper. Flip it over with the markings facing the case and you can squeeze out a touch more sizing, which comes in handy when brass work-hardens and springs back more than it used to.
Picking the Right .270 Bushing for Your Load
Bushing selection is simple once you measure. Take a caliper or micrometer reading on a loaded round right where the bullet sits in the neck, then subtract .002 to .003 to land on your bushing number. You can also calculate it by doubling your neck wall thickness and adding bullet diameter before subtracting that same .002 to .003. Want a firmer hold on the bullet or running harder brass? Step down to a slightly smaller bushing for more tension.
Where the Wilson Bushing Fits In
This is a single bushing, not a complete die, so it's meant to pair with a Wilson neck sizing die base and typically an arbor press for that true bench-rest feel. These bushings also interchange with Redding dies, but they won't work in Forster units. Most reloaders end up keeping a handful of sizes on hand to fine-tune tension across different bullets, brass lots, and loads. Made in the USA and built to last through a lot of reloading sessions.
Key Specifications
- Manufacturer: L.E. Wilson
- Manufacturer Part Number: B-270
- Model: B-270
- UPC: 815145024602
- Nominal Size: .270 inch
- Material: Hardened steel
- Taper: .003 inch reamed taper
- Size Increments Available: .001 inch
- Compatibility: Wilson and Redding neck/bushing dies
- Function: Sizes outside of case neck for bullet tension
- Country of Origin: USA
What’s Included
- One L.E. Wilson .270 steel neck sizer die bushing (B-270)
Frequently Asked Questions
How do I know if the .270 bushing is the right size for my cartridge?
Measure the diameter of a loaded round right where the bullet sits in the neck, then subtract .002 to .003 to find your bushing number. You can also double your neck wall thickness, add bullet diameter, and subtract that same amount. Keep in mind there's no universal size, so the .270 is correct only if your measurements point to it.
Does this bushing work in dies other than L.E. Wilson?
Yes. It fits L.E. Wilson neck sizing dies and bushing-type full-length dies, and it also interchanges with Redding dies. It will not fit Forster dies, so check your die brand before ordering.
Is the die included with this .270 bushing?
No, this listing is for the bushing only. It's designed to drop into a Wilson neck sizing die base, which is sold separately, and most reloaders run the setup with an arbor press for precision work.
Why does the bushing have a number side that can face up or down?
The size marked on the bushing refers to its middle, which is reamed with a .003 taper. Running it number-side up gives standard sizing, while flipping it over with the markings toward the case produces slightly tighter tension. That flip is handy when brass work-hardens and no longer holds the bullet the way it should.




Reviews
There are no reviews yet.