Lyman .243 Winchester Case Length Headspace Gauge

The Lyman .243 Winchester Case Length/Headspace Gauge is a reloading inspection tool that checks bottleneck rifle cases after resizing. It verifies that headspace stays within the proper dimension, catching cases that exceed the maximum or fall below the minimum, and it identifies cases that have grown past the maximum allowable case length.

Using it is a simple insert-and-check step, so each .243 Winchester case can be confirmed before it goes back into the reloading cycle. That check helps prevent excessive headspace conditions and keeps case dimensions consistent for accurate, safe handloads.

Key Features

Highlights

• Checks proper headspace dimension after resizing
• Verifies cases do not exceed maximum or fall below minimum headspace
• Identifies cases exceeding maximum allowable case length
• Simple insert-and-check operation

How to use

After resizing a .243 Winchester case, insert it into the gauge and check the result. The gauge shows whether headspace is within the proper dimension and whether the case has exceeded the maximum allowable case length.