The Lyman 7705100 Pro Headspace Gauge is precision machined from corrosion resistant stainless steel for a long rust-free life. Designed for reloaders working with .223 Rem bottleneck rifle cases, this gauge delivers the accuracy and durability you need for safe ammunition assembly. The outside flats prevent rolling and the o-rings provide a non-slip grip, making the tool easy to handle and reliable in your reloading workspace.
The reloader simply inserts the case into the gauge to insure that it does not exceed the maximum or fall below the minimum allowable headspace. In addition, the gauge will identify a case which exceeds the maximum allowable case length. To achieve the highest degree of safety and accuracy, Lyman recommends that all bottleneck rifle cases be inspected after resizing to ensure that the proper headspace dimension is maintained. The best way to check this critical dimension is with a Lyman case length/headspace gauge. this precision tool eliminates guesswork and ensures every round meets specification.
