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Neck tension is one of those little details that separates ho-hum groups from the tight ones, and the Forster 0.240" Neck Bushing gives you the control to get it right. This insert drops into your Forster bushing die and lets you size the case neck down to the exact diameter you want, rather than whatever a one-size expander decides for you. The interior is honed to a mirror finish, so brass slides through clean and your necks come out straight.
The bushing is what determines the inside neck diameter of your finished case, so picking the right one matters. A good starting point is to measure a loaded round at the case neck and choose a bushing roughly .002" smaller than that measurement. Because Forster offers these in .001" steps, you can fine-tune for your particular brass and neck wall thickness instead of guessing. If you're running neck-turned brass or just want to tweak how hard your necks grip the bullet, having a couple of bushings on hand makes that adjustment a two-minute job.
Forster heat treats each bushing, then runs it through a cryogenic process that refines and tightens the surface of the steel. The result is a smoother bore that sizes brass with less drag and holds up over a lot of reloading sessions. Less friction during sizing means less working of the brass, which helps your necks stay concentric and extends case life.
This is the BUSH-240 and it measures .240" inside diameter, sitting right in the range for sizing .22 and sub-caliber necks depending on your brass. It's built to work with Forster Bushing Bump Neck Sizing Dies and Forster Bushing Full Length Sizing Dies. Keep in mind these are made specifically for Forster dies and won't interchange with Redding or L.E. Wilson bushings, so pair it with the right tooling and it'll do its job for years.
It's designed for Forster Bushing Bump Neck Sizing Dies and Forster Bushing Full Length Sizing Dies. These bushings are made specifically for Forster tooling, so they won't swap into Redding or L.E. Wilson dies. Pair it with a Forster bushing die and you're set.
Measure a loaded round at the case neck, then choose a bushing about .002" smaller than that measurement for proper neck tension. Forster makes these in .001" increments, so you can fine-tune based on your brass and neck wall thickness. Many reloaders keep a few sizes on hand to dial things in.
After heat treating, Forster runs each bushing through a cryogenic process that refines and closes the surface of the steel. This gives you a smoother interior that sizes brass with less drag. The smoother sizing works the brass less, which helps keep necks concentric and extends case life.
In a Forster bushing die the bushing itself sets the inside neck diameter, so your bushing choice does the work an expander ball normally would. That's why getting the right size matters so much. It lets you control neck tension directly instead of relying on an expander.
| UPC | 757253998003 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | BUSH-240 |
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