Lyman .308 Winchester Case Headspace Gauge
Precision headspace and case length gauge for .308 Winchester rifle reloading. Insert cases to verify they stay within safe minimum and maximum dimensions. Identifies out-of-spec cases that must be discarded.
Lyman .308 Winchester Case Headspace Gauge
Proper headspace is fundamental to safe and accurate rifle reloading. The Lyman case headspace gauge provides a simple, reliable method to verify your bottleneck rifle cases meet critical dimensional specifications.
How It Works
After resizing your cases, simply insert each one into the gauge. The gauge immediately shows whether your case falls within the safe minimum and maximum headspace dimensions for .308 Winchester ammunition. It also identifies cases that exceed maximum allowable length.
Why This Matters
Safety First: Cases with excessive headspace can cause dangerous pressure spikes or case separation during firing. This gauge catches those problems before they reach your rifle.
Accuracy: Consistent headspace dimensions contribute to uniform ammunition performance and tighter shot groups.
Efficiency: Quick visual inspection saves time compared to measuring individual cases with calipers.
Important Safety Note
Any case identified as having excessive headspace should be destroyed immediately and not reloaded. This simple step protects both you and your firearm.
Lyman recommends inspecting all bottleneck rifle cases after resizing to maintain the highest standards of safety and accuracy in your reloading operation.
