The Lee Undersize Mandrel – 0.239 Inch is engineered to improve case neck tension and enhance the overall consistency of your reloads.
Air Gun Accessories

Lee Undersize Mandrel – 0.239 Inch

R224

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Description

The Lee Undersize Mandrel – 0.239 Inch is engineered to improve case neck tension and enhance the overall consistency of your reloads. Specifically designed for cartridges like .243 Winchester, 6mm Creedmoor, and 6mm/244 Remington Mag, this mandrel is an essential tool for reloaders who demand tight tolerances and repeatable performance.

Designed for Precision Reloading

When used correctly, an undersize mandrel can make a significant difference in case neck uniformity and bullet seating pressure. The 0.239-inch diameter of this mandrel helps achieve optimal neck tension, providing a more secure bullet hold that improves accuracy and consistency shot after shot.

Ergonomic and User-Friendly

Ease of use is a priority in any reloading setup. The ergonomic design of the Lee Undersize Mandrel allows for a comfortable grip and hassle-free operation. Whether you’re adjusting a few cases or processing large batches, the user-friendly design reduces strain and streamlines your workflow.

Built to Last

Crafted from high-quality, durable materials, this mandrel is built to withstand repeated use without compromising performance. Its sleek silver finish not only looks great on your bench but also resists corrosion and wear over time.

Ideal for All Reloaders

Whether you’re a veteran handloader looking to fine-tune your loads or a beginner learning the craft, this undersize mandrel delivers the precision and reliability you need. It’s a simple yet powerful addition to any reloading bench.

Features

  • Ergonomic design for comfortable use

  • Easy to handle and operate

  • Durable construction for long-term reliability

Specifications

  • Brand: Lee

  • Colour: Silver

  • Mandrel Diameter: 0.239 Inch

  • Compatible Cartridges:

    • .243 Winchester

    • 6mm Creedmoor

    • 6mm/244 Remington Mag

Manufacturers website

Click here to see our Lee range

Brand

Lee Precision

The Lee reloading business started in Richard Lee's home workshop in 1958 with the creation of the renowned Lee Loader for shotgun shells. By the early sixties, loaders for rifle and pistol ammunition were introduced, bringing over one and a half million shooters into the world of reloading with their cost-effective and efficient tools. Each Lee product is initially unique. Lee's innovations include dies, presses, crimpers, powder measures, priming tools, scales, bullet molds, melters, sizers, lubricants, turrets, trimmers. Their various accessories all set industry standards. Their products undergo a strict three-question test: Does it meet a real need or surpass other available products? Can it be produced affordably? Would I personally buy one? Only products that answer "yes" to all three questions are introduced to the market. Lee products come with exceptional guarantees. Customers can receive a full refund within 30 days if not completely satisfied. Their dies are guaranteed to produce ammunition with less bullet run-out than any other brand. Ammunition loaded with their collet dies is guaranteed to achieve the smallest groups, even compared to custom bench rest equipment. For sixty years, Lee Precision has been serving reloaders worldwide. They remain 100% family-owned.
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