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This is a single .285 inch Forster neck bushing, machined to control exactly how much your case necks get sized down during reloading. Instead of relying on a fixed neck diameter like a standard die, bushings let you tune bullet grip to the brass you're running. Forster offers these in .001 inch steps, so once you measure a loaded round and do a little math, you can pick the exact size that gives you the neck tension you're after. This one carries an inside diameter of .285 inches and the part number BUSH-285.
The general rule most reloaders follow is to measure the outside neck diameter of a loaded cartridge, then drop down about .002 inches to land on your bushing size. Want a bit more grip on the bullet for a mag-fed semi-auto or heavy recoil? Go .003 under instead. That flexibility is the whole point of running a bushing setup, and it's why precision and benchrest crowds lean on them for tight, repeatable results. Because the body of the case keeps its fire-formed fit to your chamber, you're only working the neck, which helps brass last longer.
Forster runs these bushings through a super-cooling cryogenic process, which refines and tightens the steel's surface for an ultra smooth interior. From there they're heat treated and honed to the exact inside diameter stamped on the bushing. That smooth bore is what you feel at the press: cases glide in and out without hanging up or chattering, which translates to straighter necks and more uniform tension round to round.
This bushing is built for Forster's Bushing Bump Neck Sizing Dies and Bushing Full Length Sizing Dies. One thing worth knowing up front: Forster bushings are designed to run in Forster dies only, so they won't interchange with Redding or L.E. Wilson setups. The bushing installs chamfered side down into the top of the die body, and from there you're ready to size. Order by the inside diameter you need, and if you're turning necks or running thicker-walled brass, you may want to size up or down accordingly.
No. Forster bushings are made to run in Forster dies only, specifically the Bushing Bump Neck Sizing Die and Bushing Full Length Sizing Die. They are not cross-compatible with Redding or L.E. Wilson bushing dies, so make sure you're pairing it with a Forster die body.
The usual method is to measure the outside neck diameter of a loaded, seated cartridge with a micrometer or dial caliper, then subtract about .002 inches to find your bushing size. If you want a little more bullet grip, subtract .003 inches instead. Since this bushing has a .285 inch inside diameter, it suits loaded necks measuring right around .287 inches.
This listing is for a single .285 inch neck bushing only. The sizing die is sold separately, though Forster does also offer complete die kits that include three commonly needed bushings per cartridge. If you already own a Forster bushing die, this is the drop-in insert you'd add to it.
A bushing lets you control exactly how much the neck gets sized down, which fine-tunes bullet tension and keeps you from overworking the brass. That means straighter necks, more consistent seating, and longer case life. It's a popular approach with precision and benchrest reloaders who want repeatable results, and the .001 inch size increments make dialing it in easy.
| UPC | 757253998454 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | BUSH-285 |
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