Hornady Lock-N-Load Headspace Bushing .400" - D400

This .400" headspace bushing is designed for use with the Hornady Lock-N-Load Headspace Gauge to precisely measure cases during the reloading process. The bushing is machined to exacting tolerances and enables checking of most bottleneck cases from .17 REM through belted Magnums. Use with the Headspace Comparator to extend brass life, improve accuracy, and enhance reloading results.