Redding competition shellholders are designed for ease of use, allowing precise alignment of the headspace of reloaded ammunition with any firearm. Once the appropriate shellholder is selected, the 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