Lyman Shell Holder - #12 Size

The Lyman Shell Holder #12 Size is a precision reloading component engineered for shooters who demand exact ammunition dimensions and consistent performance across multiple calibers. Built from steel construction, this shell holder delivers the repeatability required for competitive and precision reloading applications, accommodating large-diameter rifle cartridges including the 7.62×54 Russian, .416 Rigby, .45-70 Government, and various Sharps cartridges (.45-90, .45-100 WCF, .45-110, and .45-120).

The #12 size classification indicates this holder is spec'd for the larger magnum and historic rifle rounds that require increased diameter support during the resizing and seating cycle. Steel construction provides dimensional stability under press pressure, preventing the flex and tolerance drift that can occur with inferior materials. This shell holder integrates seamlessly with Lyman presses—including modern single-stage and turret systems—while maintaining cross-compatibility with most competitor presses that follow standard shell holder mounting geometry, making it a practical addition to any established reloading setup.

Reloaders working with large-capacity hunting rounds, historical rifle cartridges, or magnum applications will find the #12 size essential for achieving the tight neck runout and uniform seating depth these calibers demand. Whether working up loads for long-range hunting, historical rifle shooting, or large-caliber handgun rounds, this shell holder supports the precision necessary to maintain velocity consistency and chamber fit across multiple firings.

Lyman has maintained a strong reputation in the reloading equipment market for decades, with shell holders recognized for holding tight tolerances across production runs. The #12 is available as a standalone component, allowing reloaders to build out a complete shell holder set matching their cartridge collection.