Take control of headspace with the new Redding Competition Shellholders, designed to offer precise adjustments for case-to-chamber fit. Packaged in five-piece sets, these shellholders are available in .002 inches increments (+.002 inches, +.004 inches, +.006 inches, +.008 inches and +.010 inches), allowing you to fine-tune your reloads with exceptional accuracy. Each shellholder features a distinct black oxide finish for durability and is clearly marked to indicate how much it will decrease the case-to-chamber headspace. With these shellholders, you can easily adjust the shoulder bump to perfectly customize cases for your specific chamber, enhancing overall reloading precision.