Forster Rimmed & Belted Headspace Gage – Field Length | .257 Roberts

Ensure your rifle’s chamber is safe and within SAAMI specifications with the Forster Rimmed & Belted Headspace Gage in Field Length for .257 Roberts. Headspace — the distance between the breech face and the base of the cartridge when the action is closed — is a critical safety measurement. Excessive headspace can cause unsupported brass to rupture under pressure, allowing dangerous gas to escape rearward. That’s why precision matters.

Forster manufactures these headspace gages to exacting standards, giving gunsmiths, armorers, and serious shooters a reliable tool for chamber inspection. The Field Length gage is the final benchmark in headspace testing: if your rifle closes on a Field gage, the chamber is dangerously close to or has already exceeded the SAAMI-specified maximum chamber size, signaling that immediate attention is required before the rifle is fired.

**How Headspace Gages Work:**
– **GO Gage:** If the rifle closes on a GO gage, the chamber will accept any ammunition made within SAAMI specifications.
– **NO-GO Gage:** If the rifle closes on a NO-GO gage, the chamber may have excessive headspace.
– **Field Gage:** If the rifle closes on a Field gage, the chamber is at or beyond the SAAMI maximum — a serious safety concern.

Built with painstaking care and precision craftsmanship, Forster Headspace Gages are a trusted standard in the gunsmithing and reloading community. Whether you’re inspecting a new build, a used rifle, or a custom chamber, this gage delivers the accuracy and confidence you need.

Order online today from VanTon Arms and get fast nationwide shipping on this hard-to-find precision tool — backed by our competitive pricing and extensive selection of reloading and gunsmithing equipment.