Designed specifically for shooters who are seeking the utmost in accuracy from their handloads.This instrument provides an extremely fast and accurate method for comparing the shoulder position of fired and/or sized cases and bullet seating depth uniformity. The addition of the "Range Adapter" makes this instrument more versatile and may now be used at the range or in the field without requiring the use of a reloading press.Quickly perform any of the following tasks.a Check uniformity of shoulder bumpa Check bullet seating depth uniformitya Compare sized cases to fired cases to determine the amount of headspacea Sort cases fired in two or more riflesa Sort sized cases for uniformitya Set up sizing die correctlya Check trim length uniformitya Sort bullets for uniformity