Lyman Neck Expanding M Die .40 S&W/10mm Auto
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Lyman Neck Expanding M Die .40 S&W/10mm Auto

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Lyman Neck Expanding M Die .40 S&W/10mm Auto Product description

  1. Unique M-Die Design: This die features Lyman's renowned M-Die design, which creates a precise two-step expansion of the case mouth. The first step opens the case just enough to allow the bullet to enter, while the second, slightly wider step, provides a lead-in for smooth, effortless bullet seating. This design is crucial for preventing bullet deformation and shaving.

  2. Optimized for Handgun Cartridges: Specifically engineered for straight-wall handgun cases, the Neck Expanding M Die ensures consistent case neck tension, which is vital for load accuracy and safety. It greatly reduces the common issue of shaved lead on cast bullets or damaged jackets on plated/jacketed bullets, making it a favorite among competitive shooters and avid handloaders.

  3. Durable Steel Construction: Built from robust, hardened steel, this die is designed to withstand countless reloading cycles. Its precise manufacturing ensures consistent dimensions and reliable performance over its lifetime, providing handloaders with a dependable tool for producing high-quality ammunition. The smooth finish inside the die also minimizes brass friction during operation.

  4. Versatile Compatibility: While optimized for .40 S&W and 10mm Auto, this die installs seamlessly into any reloading press utilizing standard 7/8"-14 threads. This universal compatibility means it integrates easily into existing reloading setups, making it an excellent addition for handloaders who value efficiency and interchangeability across their equipment.

ABOUT THE LYMAN NECK EXPANDING M DIE .40 S&W/10MM AUTO

The Lyman Neck Expanding M Die stands out in the reloading community for its unique, two-step expansion process, offering superior performance compared to conventional expanders. This specialized design gently flares the case mouth, creating a slight shoulder inside the case, which precisely guides the bullet into place without deforming it. This is particularly beneficial for reloaders using cast lead or soft jacketed bullets, ensuring they seat smoothly and concentrically without shaving material. Crafted from durable, hardened steel, this die promises longevity and consistent results, even after thousands of rounds. It's an indispensable tool for handloaders, competitive shooters, and hunters who demand maximum precision and reliability from their ammunition, preventing costly bullet waste and ensuring optimal performance in the field or at the range.

ABOUT LYMAN

Lyman Products Corporation, with roots dating back to 1878, is a venerable American brand known for its long-standing commitment to quality in the shooting sports industry. Founded in Middlefield, Connecticut, Lyman quickly established itself as a pioneer in manufacturing innovative reloading equipment. The company's philosophy centers on providing precise, durable, and user-friendly tools that empower handloaders to craft superior ammunition. Renowned for its attention to detail and robust construction, Lyman has built a strong reputation for producing reliable products trusted by generations of shooters.

MAIN FEATURES

  • Die Type: Neck Expanding M Die

  • Compatibility: Designed for .40 S&W and 10mm Auto handgun cartridges. Features standard 7/8"-14 threads for compatibility with most single-stage and progressive reloading presses.

  • Function: Expands the case mouth to the correct diameter, allowing for easy bullet seating without shaving lead or damaging jacketed bullets.

  • Material: Crafted from hardened steel for exceptional durability and long-term reliability. Precision machined for consistent performance.

WARRANTY

This product is covered by a 1-year global warranty that includes defects in materials and manufacturing under normal use.

IN THE BOX

  • Lyman Neck Expanding M Die (.40 S&W/10mm Auto)

General properties

Manufacturer Lyman
Made in USA
Warranty 2 years
SKU LYM7340833

Die set properties

Die operation Neck expanding
Pack size Single
Die type Standard
Bushing No
Bushing style -
Case body design Straight
Case type Handgun
Sizing die material Steel
Material Steel
Adjustment Standard
Press compatibility Standard 7/8"-14 thread
Bullet Diameter (mm). 10.16 mm
Bullet Diameter (inch). 0.400 inch

Characteristics

Suitable for Calibers 10x25mm, 10mm Auto, .40 S&W Auto

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