Forster Headspace Gage FOR 22 RIMFIRE GO

The Forster Headspace Gage FOR 22 RIMFIRE GO is a precision measurement tool engineered for reloaders and armorers who demand accuracy in rimfire ammunition assembly and inspection. This GO-gauge establishes the maximum safe headspace specification for .22 rimfire cartridges, ensuring that fired cases and freshly reloaded rounds meet proper dimensional tolerances.

Forster Products manufactures this headspace gage to exacting specifications using hardened steel construction, designed to withstand repeated insertion and removal cycles without wear or drift. The GO-gauge serves as the upper limit reference—when a cartridge or sized case passes freely into the chamber with this gage seated, headspace is within acceptable bounds.

Precision shooters, competitive reloaders, and law enforcement armorers benefit most from this gage when validating .22 rimfire ammunition before deployment or sale. Use it to verify chamber dimensions on newly acquired firearms, inspect reloaded batches for consistency, or troubleshoot pressure-related issues.