Forster 0.257″ Neck Bushing (BUSH-257) for Bushing Sizing Dies

Description

If you're chasing tighter groups and longer case life, neck tension is one of the biggest levers you can pull, and that's exactly what this 0.257" Forster bushing is built to control. It swaps into your Forster bushing die in seconds and sizes the case neck down only as much as you need, which keeps your brass from getting overworked round after round.

Forster offers these bushings in 0.001" increments, so you can fine-tune neck tension to match your brass and the amount of bullet grip you're after. The 0.257" size (model BUSH-257) fits reloaders working with case necks that measure out to this diameter. A common starting point is to measure the outside neck diameter of a loaded round and subtract 0.002", though you can go tighter if you want more bullet grip.

What Sets the Forster Neck Bushing Apart

After heat treating, every Forster bushing goes through a cryogenic process that refines and closes the steel's surface. The result is an interior finish that sizes smooth as silk, which means less drag on the brass and more uniform results from case to case. That smoother finish is a big part of why these bushings produce such clean, concentric loaded rounds.

Fitting the 0.257" Bushing Into Your Die

This bushing is made specifically for Forster's Bushing Bump Neck Sizing Dies and Bushing Full Length Sizing Dies. It installs chamfered side down into the top of the die body, then the decapping and expander assembly screws back in until it contacts the bushing. Keep in mind these are built for Forster dies and aren't cross-compatible with other brands, so if you're running a Forster setup, this is the right piece to grab.

For precision handloaders, having a few bushing sizes on the bench is the norm. Brass work-hardens over time, and after several firings you may need to step down to a smaller bushing to keep the same bullet grip, so building out your bushing collection one diameter at a time just makes sense.