The Forster 6.5 PRC Headspace Gauge, NO-GO (brand part no. HG65PRCN) is an essential check for anyone chambering or verifying a 6.5 PRC rifle. Every gunsmith knows that a headspace gauge is the most reliable way to confirm the length of a rifle chamber. Headspace is the distance between the face of the breech and the base of the cartridge when the action is closed, and excessive headspace can be dangerous as well as harmful to accuracy: unsupported brass fired in a chamber with too much headspace can rupture, sending gas rearward like exhaust from a rocket. Forster integrates that same painstaking manufacturing standard into its 6.5 PRC gauge line.

Key Specifications

• Ground as a NO-GO gauge to flag excessive headspace in a 6.5 PRC chamber.
• Precision length of 3 inches for a consistent, repeatable check.
• Supplied as a single gauge dedicated to the 6.5 PRC cartridge, a popular long-range chambering.
• Weighs approximately 0.12 pounds, light enough to carry in a range bag or tool kit.

Frequently Asked Questions

What does it mean if the bolt closes on this NO-GO gauge? If the rifle’s bolt closes on a GO gauge, the chamber will safely accept ammunition built to SAAMI industry-standard dimensions. If the bolt closes on a NO-GO gauge, the chamber may already have excessive headspace, and if it closes on a FIELD gauge the chamber is dangerously close to, or already beyond, the maximum SAAMI-specified size. Most gunsmiths aim to keep a chamber cut somewhere between the GO and NO-GO dimensions.

Why is headspace especially important on a newer chambering like 6.5 PRC? Custom and semi-custom 6.5 PRC builds are common, so verifying the chamber against a dedicated gauge is a key step before the rifle sees its first live round.

Buy the Forster 6.5 PRC Headspace Gauge, NO-GO

Verify your 6.5 PRC build’s chamber before you trust it with precision ammunition. Shop this gauge in our reloading equipment selection, and our Lubbock, Texas team will get it shipped quickly.