Hornady Lock-N-Load Headspace Bushing .420" - E420

This .420" headspace bushing is designed for use with the Hornady Lock-N-Load Headspace Gauge and Comparator to precisely measure cases during the reloading process. Machined to exacting tolerances, it enables reloaders to check most bottleneck cases from .17 REM through belted magnums for proper fit in any firearm. Made from stainless steel with a limited lifetime manufacturer warranty.