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If you run the L.E. Wilson case trimmer and load for the 300 Remington Ultra Magnum, this is the holder that keeps your fired brass square to the cutter. It grips the case body much like the chamber of a rifle, holding everything concentric so the neck stays aligned with the cutter head and your trim lengths come out consistent from one case to the next. The holder is machined from polished steel and is built to the tight tolerances Wilson is known for, which is exactly what you want when you are chasing uniform case prep.
This one is cut for fired and neck sized brass in 300 Remington Ultra Magnum, and it also handles 338 RUM, 26 Nosler, 28 Nosler, and 338 Edge since those share the same case body. The fired version is reamed slightly larger than a new case holder, which lets enough of the neck stand proud of the holder so you have room to trim. If you full length resize your brass back down toward factory dimensions, keep in mind a new case holder may seat differently, but for neck sized and fired cases this is the holder you reach for.
Using it is straightforward. Drop the case into the holder, tap the rim on a wood block or benchtop to seat it snug against the internal taper, then set the holder onto the trimmer rails against the depth stop. Hold it firmly back against the adjustment rod while you crank the cutter, and a lot of folks find holding the holder by hand gives better feel and tighter length consistency than the clamp alone. When you are done, a light rap on the case mouth or a wooden dowel pops the brass right back out.
Beyond trimming, the holder doubles as a steady base for primer pocket work, neck reaming, and deburring with Wilson's uniforming tools, so it earns its spot on the bench well past just cutting cases to length.
It is made for the 300 and 338 Remington Ultra Magnum. Because they share the same case body, it also works with 26 Nosler, 28 Nosler, and the 338 Edge. It is designed for fired and neck sized brass in those chamberings.
This is the fired case version, reamed slightly larger so the neck stands proud for trimming fired and neck sized cases. New brass is smaller in diameter and may seat too deep, so if you shoot new or full length resized cases, Wilson offers a separate new case holder for that. For brass you have already fired and neck sized, this is the correct choice.
Yes, the case holder is built to run with the L.E. Wilson case trimmer and sits on its rails to keep the case concentric to the cutter. It is not a standalone tool. It also pairs with Wilson's uniforming and deburring tools for primer pocket and neck work.
After trimming, give the case mouth a light rap on a wood block and it usually drops free. For cases that sit tight, a wooden dowel pressed through the inside works well to push the brass out without marring it. Keeping the holder clean of shavings helps everything seat and release smoothly.
| UPC | 815145020581 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CH-ULTRA |
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