Forster‘s .308 Win No-Go Headspace Gage (brand part no. HG0243N) checks one of the most common bolt-action and semi-auto chamberings for excessive headspace, an important check given how widely .308 Winchester rifles get rebarreled or built from surplus actions. The gauge measures 1.634 inches, and if a bolt closes on it, the chamber has been cut too long, which can be dangerous and can hurt accuracy. It’s a standard companion to Forster’s .308 Win Go gauge for any build or inspection.

Key Specifications

• It’s built as a No-Go gauge for the .308 Winchester chamber.
• The gauge measures 1.634 inches in length.
• It flags excessive headspace on one of the most common bolt-action and semi-auto chamberings.

Frequently Asked Questions

Why is this gauge important for .308 Win builds? It’s one of the most commonly rebarreled and rebuilt chamberings, making a proper headspace check especially important.

What does the 1.634-inch measurement represent? It’s the No-Go length used to confirm the chamber hasn’t been cut too long.

Buy the Forster .308 Win No-Go Headspace Gage

A precise 1.634-inch No-Go gauge keeps any .308 Win build within safe spec. Browse our gunsmithing tools selection and order from our Lubbock, Texas gun shop for fast shipping.