Manufacturer: Hornady HK-55
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.
Specifications and Features:
For use with Hornady Lock-N-Load Bullet Comparator
.330 Diameter Bushing, .350 Diameter Bushing, .375 Diameter Bushing, .400 Diameter Bushing, .420 Diameter Bushing