The Forster Headspace Gauge is essential for checking the chamber length of a rifle, crucial for safety and accuracy, especially when chambering a new barrel or buying a used gun.
Forster gauges are manufactured to SAAMI specs, with this particular gauge being .0005 inch under 7.62 NATO NO-GO dimensions.
The gauges are made of machined steel and are interchangeable between calibers that share the same stock number, with specific calibers listed for .30-30, .30-06, and Magnum cartridges.