Forster Products Field Gauge Features The Forster Field Gauge is machined to exacting SAAMI specifications giving gunsmiths and firearm owners a precise way to check that a .22-250 Remington chamber has not exceeded safe headspace limits. Unlike a Go or No-Go gauge the Field Gauge represents the absolute maximum headspace a chamber can safely hold and a bolt that closes on it signals the firearm is no longer safe to fire. This makes the Field Gauge particularly useful when evaluating a used rifle before purchase or when inspecting a chamber that has seen extensive round counts. Hardened steel construction keeps the gauge dimensionally accurate through repeated measurements over its service life. At just 1.584 inches long and a fraction of a pound this gauge is easy to store in a gunsmithing kit or tool box without taking up meaningful space. Its precision engineering ensures that measurements taken with this Field Gauge are consistent and repeatable which matters when safety decisions hinge on the result. Gunsmiths performing routine maintenance or chambering new .22-250 barrels rely on tools like this to confirm their work meets industry standards. This Forster Field Gauge is a straightforward dependable addition to any serious reloading or gunsmithing toolkit. Forster Products Field Gauge Specifications Manufacturer: Forster Model: Field Gauge Caliber: .22-250 Rem Type: Headspace Gauge Field Material: Steel Length: 1.584 Available At: GrabAGun