Description
Forster built the Bushing Bump Neck Sizing Die for the handloader who cares about every thousandth. Instead of hammering a case down with a standard full-length die, this one lets you control exactly how much your neck gets squeezed while gently bumping the shoulder back for proper headspace. The result is straighter necks, better concentricity, and ammo that chambers smooth and shoots tight. This kit is set up for the .243 Winchester and ships with three bushings in .272, .270, and .268, which cover the sizes most reloaders reach for first.
What the 243 Win Bushing Bump Die Actually Does
This is a one-step operation. As the case travels into the die, the bushing sizes the neck down and the die bumps the shoulder back at the same time, and the decapping assembly knocks out the spent primer. Because the body of the case keeps its fire-formed fit to your chamber, you are only working the brass as much as you truly need to. That is what prolongs case life and keeps your groups honest over a long reloading season.
Picking Bushings for Your Bump Neck Kit
Forster offers bushings in .001 inch increments, so once you measure the neck wall thickness of your particular brass you can order the exact size that gives you the bullet grip you want. A good rule is to use the least amount of tension that holds the bullet reliably. Keep in mind this die only accepts bushings made by Forster, so stick with their lineup when you expand your set. You also have the option of running the expander ball or leaving it out entirely if you neck-turn your brass to a uniform thickness.
Built the Forster Way
The interior is machined to a superior finish for smooth, drama-free sizing, and it threads into any standard 7/8-14 press or Forster's own Co-Ax. It is made in the U.S.A. and carries the same bench-rest reputation that has made Forster a favorite among precision reloaders and competitive crowds for decades.
Key Specifications
- Manufacturer: Forster Products
- Manufacturer Part Number: BBK2221
- UPC: 757253999079
- Caliber: .243 Winchester
- Die Type: Bushing Bump Neck Sizing Die
- Bushings Included: .272, .270, .268
- Bushing Increments Available: 0.001 inch
- Thread: 7/8-14 standard
- Decapping: Yes, decapping assembly included
- Expander Ball: Optional, can run with or without
- Bushing Compatibility: Forster bushings only
- Country of Origin: USA
What’s Included
- One Forster Bushing Bump Neck Sizing Die for .243 Winchester
- Three pre-selected neck bushings (.272, .270, .268)
- Decapping assembly
- Instructions
Frequently Asked Questions
What does the Forster 243 Winchester Bushing Bump Neck die do differently than a standard sizing die?
A standard full-length die resizes the whole case body, while this bump neck die only sizes the neck down and bumps the shoulder back for proper headspace. That keeps the body in its fire-formed fit to your chamber and prevents overworking the brass. You get straighter necks, better concentricity, and longer case life, which adds up to more consistent ammo.
Which bushings come in the kit and can I use other brands?
The kit ships with three pre-selected bushings in .272, .270, and .268, which are the sizes most .243 reloaders start with. This die only accepts bushings made by Forster, so if you want to fine-tune your neck tension further, you will want to add Forster bushings in .001 inch increments.
Do I have to use the expander ball with this bump neck die?
No, you have the choice either way. If you neck-turn your brass to a uniform wall thickness, you can remove the expander ball and let the bushing do all the outside sizing. If your brass is not neck-turned, leaving the expander ball in helps give every case a consistent inside diameter and even bullet grip.
Will this die fit my press?
Yes, it threads into any standard 7/8-14 reloading press, and it also works great in Forster's own Co-Ax press. Set the die so it contacts the shell holder at the top of the ram stroke, lock it down, and you are ready to size.





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