Description
This is the L.E. Wilson chamber type bullet seating die cut for the 338 Edge, a wildcat built on the 300 Remington Ultra Mag case necked up to .338. If you've been fighting inconsistent seating depth and bullet runout from a standard threaded press die, this is the kind of tool that quietly fixes the problem. The design is simple and it works: the die body is chambered to match the cartridge, so the case and bullet are both captured and held in perfect alignment before the bullet ever moves. A close-fitting seating stem then pushes the bullet straight down into the case with nothing cocking it off center.
Why the 338 Edge Chamber Type Seater Runs Straighter
The whole point here is taking the threads out of the equation. On a conventional press, the case threads up into the die and any slop can tilt the bullet. Wilson's chamber type approach sets the die on a flat surface and lets gravity and tight tolerances do the aligning, which is why these seaters have a long reputation among competitive shooters for turning out rounds with very low runout and consistent cartridge overall length from the first round to the hundredth.
Dialing In Your 338 Edge Loads
Seating depth adjustments are made by turning the screw inside the cap, which runs on 3/8"-24 threads. It's a straightforward setup once you've found your node, and it holds that setting round after round. This is a hand die, meant to be run with a small arbor press for the best feel, though a soft-faced mallet will do the job in a pinch. One of the perks reloaders mention with an arbor press is that you can actually feel the seating force on each round, which makes it easy to pick out the oddballs and set them aside.
Built for the Precision 338 Edge Handloader
Made in the USA, this die is a popular pick for anyone loading the 338 Edge for long range and heavy-for-caliber bullets. Keep in mind it does not full length size, so you'll want to pair it with a Wilson neck or sizing die and an arbor press to round out your bench.
Key Specifications
- Manufacturer: L.E. Wilson
- Cartridge: 338 Edge
- Die Type: Chamber Type Bullet Seating Die
- Seating Depth Adjustment: Screw in cap, 3/8"-24 TPI
- Press Compatibility: Arbor press or soft-faced mallet (hand die)
- Country of Origin: Made in USA
- Manufacturer Part Number: BS33-8EDG
- UPC: 815145027054
What’s Included
- One L.E. Wilson 338 Edge chamber type bullet seating die
Frequently Asked Questions
Do I need an arbor press to use the 338 Edge bullet seating die?
An arbor press is the recommended way to run this die and gives you the best feel for seating force on each round. You can use a soft-faced mallet in a pinch, but it's not the ideal method. This is a hand die and is not made for a conventional threaded reloading press.
Does this 338 Edge die have a micrometer adjustment?
No, this is the standard chamber type seater. Seating depth is set by turning the screw inside the cap, which runs on 3/8"-24 threads, and it holds that setting consistently once dialed in. If you want click adjustments in .001 inch increments, that's Wilson's separate stainless micrometer top model.
Will this die full length size my 338 Edge brass?
No, it only seats bullets. Wilson chamber type dies don't full length size, so you'll want to pair this seater with a Wilson neck or sizing die to handle your brass. Together with an arbor press they make a solid precision loading setup.
Why choose a chamber type seater over a threaded press die for the 338 Edge?
The chamber type design captures both the case and bullet in alignment before seating, taking press threads out of the equation. That straight-line approach is why these seaters are known for low bullet runout and repeatable cartridge overall length. For precision and long range 338 Edge loads, that consistency pays off on target.




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