For unparalleled safety and accuracy, Lyman strongly advises that all bottleneck rifle cases be thoroughly inspected after resizing to ensure that headspace remains within critical dimensions. The most reliable method to verify this is by using Lyman's case length/headspace gauge. Simply insert your resized case into the gauge, and it will confirm whether the headspace falls within the minimum and maximum allowable limits. Additionally, the gauge identifies any cases exceeding the maximum case length. If excessive headspace is found, it is essential to discard the case immediately. Lyman's gauges eliminate the guesswork, providing reloaders with absolute confidence.

• Verifies case headspace
• Detects instances of prolonged duration