The Forster 22 PPC/6mm PPC Go Gauge (brand part no. HG0PPCG) is a precision steel headspace gauge shared between the 22 PPC and 6mm PPC, two cartridges built specifically for benchrest-level accuracy that share the same case dimensions apart from bullet diameter. Forster Products machines it to a fixed 1.145-inch length representing the minimum acceptable headspace; the bolt should close freely on this gauge in a properly finished chamber. It’s the baseline half of a standard headspace check used during a new build or chamber verification. Stock it with the rest of our gunsmithing tools and gunsmith supplies for benchrest rifle work.

Key Specifications

• 22 PPC/6mm PPC Chambering Ground to the shared minimum headspace dimension for both PPC cartridges.
• Go Gauge Type Confirms the chamber is cut deep enough for normal bolt closure on a correctly dimensioned case.
• 1.145-Inch Gauge Length A fixed, precision-ground reference length for a repeatable check.
• Steel Construction Hardened steel that retains its critical dimension through repeated use.
• Single-Piece Gauge Sold individually for use alongside a no-go gauge during a complete check.

Frequently Asked Questions

Why does one gauge cover both 22 PPC and 6mm PPC? Both cartridges are based on the same parent case with identical body and shoulder dimensions, differing only in bullet diameter, so headspace is checked the same way for either.

Why is headspace precision so critical for PPC cartridges? They’re purpose-built for benchrest competition, where even minor headspace variance shows up directly in group size and case life.

Buy the Forster 22 PPC/6mm PPC Go Gauge, Steel

A benchrest build deserves a chamber checked to the same standard as the rest of the rifle. Order this go gauge from our Lubbock, Texas gun shop for fast, insured shipping to your bench.