The Forster Products 22 Rimfire No-Go Headspace Gage (brand part no. HG22RIMN) is built for rimfire actions, where headspace is measured against the case rim rather than the shoulder or belt used on centerfire cartridges. Excessive rimfire headspace can still cause dangerous case ruptures or feeding problems, making a proper check just as important as on a centerfire rifle. The gauge measures a precise 0.046 inch, reflecting the tight tolerances rimfire actions are built to.

Key Specifications

• It’s built as a No-Go gauge for rimfire chambers.
• The gauge measures a precise 0.046 inch.
• It checks headspace measured against the case rim, as rimfire actions require.

Frequently Asked Questions

How is rimfire headspace different from centerfire? Rimfire headspace is measured against the case rim rather than the shoulder or belt used on centerfire cartridges.

What can excessive rimfire headspace cause? It can lead to dangerous case ruptures or feeding problems.

Buy the Forster 22 Rimfire No-Go Headspace Gage

A precision rimfire gauge checks tolerances that are easy to overlook on a .22 action. See more in our gunsmithing tools lineup and order from our Lubbock, Texas gun shop for fast shipping.