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L.E. Wilson 280 Rem/7mm Express Micrometer Top Bullet Seater Die

UPC: 815145029843

$135.52

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Description

If you've been chasing tighter groups and cleaner numbers off your 280 Remington or 7mm Express, the way your bullets are seated matters more than most folks give it credit for. This L.E. Wilson Micrometer Top Bullet Seater is a chamber-type design, meaning the case and bullet are fully captured inside a chamber that mimics your rifle's own before the seating stem pushes the bullet straight down. There's essentially one moving part during the seating stroke, and the stem-to-body fit is tight enough that runout is kept to a minimum. That's why these dies have long been a favorite among benchrest and precision crowds.

What Sets the 280 Rem/7mm Express Seater Apart

The micrometer top is where this die earns its keep. The scale reads in .001" graduations, so you can make fine seating depth changes and actually track them, which takes the guesswork out of load development. Major adjustments are handled through the 3/8"-24 TPI threads in the cap, then you fine-tune with the micrometer dial. It's machined from a solid bar of stainless steel with laser-engraved markings, so it holds up to years of use and stays easy to read.

Running the 280 Rem/7mm Express Micrometer Seater

This is a hand die, built to run with a small arbor press rather than a conventional threaded press. You can seat bullets with a soft-faced mallet in a pinch, but an arbor press gives you the smooth, repeatable stroke these dies were made for. A lot of handloaders keep one on the bench and bring it to the range to tweak COAL on the spot while chasing their chamber's optimal seating depth. For the 280 Rem and 7mm Express, it handles the .284" diameter 7mm bullets this cartridge was built around.

If consistent concentricity and repeatable overall length are what you're after, this is about as refined as bullet seating gets.

Key Specifications

  • Manufacturer: L.E. Wilson
  • Manufacturer Part Number: S70-280
  • UPC: 815145029843
  • Caliber: 280 Remington / 7mm Express
  • Bullet Diameter: .284" (7mm)
  • Die Type: Chamber-Type Inline Bullet Seater
  • Adjustment: Micrometer top, .001" graduations
  • Cap Threads: 3/8"-24 TPI
  • Material: Stainless Steel
  • Markings: Laser Engraved
  • Press Compatibility: Arbor press (hand die)
  • Country of Origin: USA

What’s Included

  • L.E. Wilson Micrometer Top Bullet Seater die
  • Seater base to elevate the primer above the arbor press plate
  • Standard seater stem
  • Instructions

Frequently Asked Questions

Does the 280 Rem/7mm Express Micrometer Top Bullet Seater work in a standard reloading press?

No, this is a hand die designed for use with an arbor press, not a conventional 7/8"-14 threaded press. You can seat bullets with a soft-faced mallet in a pinch, but a small arbor press gives you the smooth, repeatable stroke these dies are built for. L.E. Wilson recommends a quality arbor press for the best results.

How does the micrometer top adjust seating depth?

The micrometer reads in .001" graduations, letting you make fine, trackable seating depth changes. Major adjustments are made through the 3/8"-24 TPI threads in the cap, then you dial in the fine-tuning with the micrometer. This makes it easy to find and return to your rifle's optimal overall length.

Will this die work for both 280 Remington and 7mm Express?

Yes. The 280 Remington and 7mm Express are the same cartridge under different names, both using .284" diameter 7mm bullets. This seater is cut for that chambering and handles either designation without issue.

Why choose a chamber-type seater over a conventional seating die?

A chamber-type seater fully captures both the case and the bullet in alignment before the stem pushes the bullet straight into the neck. With essentially one moving part and extremely tight stem-to-body tolerances, it minimizes bullet runout and delivers more consistent concentricity than a typical seating die. That's why precision and benchrest handloaders favor them.

Additional information

UPC

815145029843

Manufacturer

Manufacturer Part Number

S70-280

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