Hornady Lock-N-Load Headspace Gauge Kit with Comparator and 5 Bushings

The Hornady Lock-N-Load Headspace Gauge is a great tool for increasing the accuracy of your loaded ammunition. The Headspace gauge measures 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. Bushings 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. Ackley Improved chambers use the same bushing size as the parent case.Notes:All bushing are interchangeable. Works on all bottleneck type cases and wildcats.This set fits 17 caliber through belted magnums. Must be used with Calipers. Includes: Comparator body5 bushings B-2000 GaugeAllen wrench