Hornady Lock-N-Load Headspace Gauge

The Hornady Lock-N-Load Headspace Gauge is perfect for measuring from the case-head to the datum line on the case shoulder to allow proper brass resizing for a precise fit with the rifle chamber. Bushing fit the comparator body and attach to calipers with a thumb screw. Can be used with bottleneck cases from 17 caliber through large belted magnums. Includes: 330 Diameter Bushing, 350 Diameter Bushing, 375 Diameter Bushing, 400 Diameter Bushing, 420 Diameter Bushing Notes: This is for the bushing only, the Bullet Comparator and Calipers that are required for the set to work are (Sold Separately) All bushings are interchangeable with the Comparator