Redding Competition Shell Holder Set - #12 Size

The Redding Competition Shell Holder Set #12 Size delivers precision headspace control for serious reloaders who demand consistency across every fired case. This complete set includes five competition shell holders, each sized in precise 0.002-inch increments and individually marked to indicate the exact amount by which it will decrease case-to-chamber headspace. For competitive shooters and handloaders pursuing sub-minute-of-angle accuracy, this level of headspace adjustment capability is essential to achieving optimal cartridge concentricity and chamber fit.

The incremental sizing system addresses a critical reloading challenge: once a fired case is resized, its headspace relationship to the chamber varies depending on how much it was fired and fired in what chamber. By providing five different holder sizes in two-thousandths-of-an-inch steps, this set allows you to dial in the exact headspace reduction your specific brass requires, eliminating inconsistencies that degrade accuracy. Each holder is clearly labeled for quick identification during your reloading sequence. The set arrives in a heavy-duty plastic storage box designed to keep all five holders organized and protected when not in use.

This shell holder set is purpose-built for competition reloaders—primarily precision rifle shooters preparing ammunition for match conditions where headspace variation directly impacts velocity spread and group potential. The #12 size designation indicates this set is calibrated for specific cartridge families; verify your caliber matches the #12 specification before purchase. Whether preparing match ammunition for long-range precision events or testing load development for benchrest competition, having multiple headspace options eliminates the guesswork from case preparation and supports the controlled, repeatable reloading process that competition demands.