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Anyone trimming brass on an L.E. Wilson case trimmer knows the cutter is only half the setup. The other half is the case holder, and this one is machined specifically for fired 30-40 Krag brass. It cradles the case by its body taper rather than the head, holding everything square and concentric with the cutter so you get the same trim length every single time. The design essentially mimics the chamber of a firearm, supporting the case where it matters for true alignment.
The FIRED designation is the key detail here. Fired brass has expanded to fit your chamber, especially around the body and shoulder, so it runs slightly larger than factory new brass. This holder is reamed to accommodate that expansion, which lets enough of the neck protrude for the cutter to reach. It's the right pick for brass that's been fired in your rifle or neck-sized only. If you full-length resize your 30-40 back to factory dimensions, you'd typically want a new-case holder, though the Krag's generous body taper means a lot of folks get away with running sized brass in the fired holder without trouble.
Using it is simple. Drop your case into the holder, tap the head on a firm surface to seat it against the internal taper, then slide the whole assembly into the trimmer against the depth stop and crank the cutter until the shavings stop falling. A quick rap on the case mouth pops it back out. Beyond trimming, the same holder works for primer pocket reaming, neck reaming, and deburring when paired with the matching L.E. Wilson tools, so it earns its spot on the bench several times over.
L.E. Wilson has been a family-run shop since 1927 and has built case trimmers and holders since the 1930s, so this isn't a new idea they're figuring out. Everything is machined in the USA to tight tolerances, which is exactly what you want for a caliber like the 30-40 Krag where quality factory brass can be hard to come by and careful case prep goes a long way toward consistent loads.
The FIRED version is reamed slightly larger to fit brass that has expanded after being fired in your chamber, which lets enough of the neck stick out for the cutter to reach. A new-case holder is sized tighter for factory new or full-length resized brass. For most reloaders, the fired holder is the default choice since that's the condition brass is usually in when it needs trimming.
It's primarily intended for fired or neck-sized brass. That said, the 30-40 Krag has a fair amount of body taper, and many handloaders report running sized brass in the fired holder with no problems. If your case mouth still protrudes enough for the cutter to grab, you're good to go.
No, it's made specifically for the L.E. Wilson Case Trimmer. The holder and trimmer are designed as a system, which is how they maintain that square, concentric alignment between the case and the cutter.
Trimming is the main job, but it does more than that. The same holder can be used for primer pocket reaming, neck reaming, and deburring when paired with the matching L.E. Wilson tools, so it stays useful across several steps of your case prep.
| UPC | 815145020536 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CH-3040 |
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