Redding competition shellholders are crafted for user convenience, ensuring precise alignment of the headspace of reloaded ammunition with any firearm. After selecting the correct shellholder, the results are consistently reproducible, removing the necessity for additional 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