Precision headspace measurement tool for .204 Ruger cartridges. Insert cases to verify they fall within safe minimum and maximum headspace limits. Identifies out-of-spec cases that should be discarded.
Proper headspace is fundamental to safe and accurate ammunition reloading. This Lyman headspace gauge provides a quick, reliable method to verify that your .204 Ruger cases meet specification before loading.
The gauge establishes both minimum and maximum allowable headspace dimensions for the .204 Ruger cartridge. Simply insert each case into the gauge to determine whether it falls within the acceptable range.
Any case found to have excessive headspace should be destroyed immediately. Do not attempt to reload such cases, as they present a serious safety risk. Excessive headspace can lead to dangerous pressure spikes and potential firearm damage or injury.
This gauge is an essential tool for reloaders who demand precision and safety in their ammunition preparation.