Lee Auto Prime Shell Holder #14 Auto Prime Shell Holder

The Lee Auto Prime Shell Holder #14 is a specialized reloading accessory designed for hand-priming brass cases with the Lee Auto Prime priming tool. Model 90272 works exclusively with the Lee Auto Prime unit—not compatible with standard reloading presses—and serves reloaders who prefer the precision and control of manual priming operations. As part of Lee Precision's comprehensive shell holder lineup, the #14 size accommodates a specific range of cartridge dimensions, fitting into a system of 20 unique holder sizes engineered to cover virtually every common and specialty cartridge configuration.

Hand-priming with the Lee Auto Prime offers distinct advantages over press-mounted priming systems: it isolates the priming operation from the reloading press stroke, reducing the risk of primer-seating inconsistency caused by press deflection. The shell holder's engineered fit ensures positive case retention during the priming stroke, critical for achieving uniform primer seating depth—a factor that directly impacts ignition reliability and shot-to-shot consistency. The compact 3.7 x 0.3 x 4.95-inch profile and minimal 0.04 lb weight make it convenient for bench setups with limited workspace or for reloaders who maintain portable reloading kits.

This holder is essential for precision-focused handloaders and match-grade ammunition manufacturers who demand tight tolerances on primer seating. Reloaders building competition ammunition—whether for precision rifle, tactical pistol, or benchrest shooting—benefit from the mechanical separation of priming from the press cycle. The #14 holder addresses mid-range cartridge dimensions; pairing it with other sizes in Lee's 20-holder system or the 11-piece shell holder kit enables coverage across over 115 distinct cartridge types, making it a cost-effective foundation for a comprehensive reloading operation.