Grampswillys - Hornady Lock-N-Load Bullet Comparator Basic Set

This system from Hornady provides the easiest way to accurately measure your specific rifle's chamber and determine distance to the lands. This assures you can accurately set proper seating depth or adjust with assurance based on measurement, not trial and error. Especially helpful when loading all-copper bullets which run longer to achieve weight and may need to be set farther off the lands for maximum accuracy. Especially true with Barnes.