L.E. Wilson Expanding Mandrel Die .337 Caliber
Precision expanding mandrel die for .337 caliber brass preparation. Stainless steel construction with interchangeable mandrels, cut-out viewing window, and L.E. Wilson lock nut. Made in USA.
L.E. Wilson Expanding Mandrel Die for .337 Caliber
The L.E. Wilson Expanding Mandrel Die is an essential tool for serious reloaders who demand precision and consistency. This die prepares new or once-fired brass for optimal bullet seating by expanding the case neck to slightly under bullet diameter, ensuring uniform neck tension and consistent seating depth.
Key Features
- Stainless steel construction for durability and long-lasting performance
- Interchangeable mandrels (sold separately) to accommodate various calibers
- Cut-out design provides clear visibility for case alignment and depth setting
- Compatible with standard 7/8-inch reloading presses
- Includes L.E. Wilson precision lock nut with specifications: .225" thickness (inside to outside), .270" height, 1.250" outer diameter
- Made in the USA
Why This Die Matters
New brass often arrives with inconsistent neck dimensions or minor damage from bulk shipping. This expanding mandrel die corrects those issues before your first firing, establishing the proper foundation for accurate, repeatable reloads. The cut-out window lets you see exactly what you're doing, eliminating guesswork from the setup process.
What's Included
One mandrel sized for .337 caliber. Additional mandrels for other calibers are available separately, making this die a versatile addition to any reloading bench.
