Forster Headspace Gauges are essential for ensuring a tight, accurate, and safe chamber in rifles, especially when chambering a new barrel or buying a used gun.
The gauges are made to SAAMI specs, with the .243 Winchester Go Gauge being .0005 inch under 7.62 NATO NO-GO dimensions for safety.
These machined steel gauges are interchangeable between calibers within the same stock number and cater to a wide range of cartridges, including .308 Winchester, 243 Winchester, and 7 mm - 08 Remington.