Redding competition shellholders, designed for ease of use, allow precise matching of the headspace of reloaded ammunition to any firearm. Once the appropriate shellholder is selected, results are consistently reproducible, eliminating the need for further adjustments. Each shell holder features a distinct black oxide finish and is clearly marked to indicate the extent to which it will adjust the case to chamber headspace Packaged in sets of five, featuring the most sought-after shellholders, each with precise 0.002 inches incremental variations for enhanced compatibility and performance