Forster .257 Roberts NOGO Headspace Gage
Precision headspace gage for .257 Roberts rifles. NOGO gage helps identify excessive chamber headspace that can affect accuracy and safety. Essential tool for reloaders and gunsmiths.
Understanding Headspace
Headspace—the distance between the breech face and the cartridge base when the action closes—is critical to both rifle safety and accuracy. Excessive headspace creates a dangerous condition where unsupported brass can rupture during firing, allowing high-pressure gas to escape rearward with potentially catastrophic results.
The Forster Advantage
Forster Headspace Gages are manufactured with meticulous attention to detail and exacting standards. Each gage is precision-engineered to provide accurate chamber measurements you can trust when your safety is on the line.
How to Use This NOGO Gage
- GO Gage: If your rifle closes on a GO gage, the chamber accepts ammunition within SAAMI specifications
- NOGO Gage: If your rifle closes on this NOGO gage, your chamber may have excessive headspace and requires attention
- FIELD Gage: If your rifle closes on a FIELD gage, the chamber is dangerously close to or exceeds SAAMI maximum specifications
Most gunsmiths chamber rifles with headspace falling between GO and NOGO dimensions. Use this gage as part of a complete headspace verification system to ensure your rifle is safe and accurate.
