Lyman Case Head Space Gauge .40 S&W
Lyman's headspace gauge ensures your .40 S&W cases meet safe specifications. Simply insert each case to verify it stays within minimum and maximum allowable dimensions—oversized cases are immediately identified for safe disposal.
Precision Reloading Quality Control
The Lyman Case Head Space Gauge for .40 S&W is an essential tool for any reloader serious about safety and accuracy. This straightforward device does one job exceptionally well: it verifies that your fired cases fall within the critical headspace specifications required for reliable, safe ammunition.
How It Works
Simply insert each case into the gauge. The gauge will immediately show you whether your case meets minimum and maximum allowable dimensions. Cases that exceed maximum headspace specifications are flagged for immediate destruction—a critical safety step that prevents dangerous malfunctions.
Why Headspace Matters
Proper headspace is fundamental to reloading success:
- Reliable Ignition — Cases within specification ensure consistent primer strike and ignition
- Improved Accuracy — Proper dimensions reduce variance shot-to-shot
- Greater Safety — Oversized cases can cause excessive pressure and firearm damage
Built for Reloaders
Lyman's case gauges check all critical dimensions of your reloaded ammunition, giving you confidence that every round you load meets safe, functional standards. It's a simple tool that delivers serious peace of mind at the loading bench.
