Forster Products Neck Tension Gage Features The Forster Neck Tension Gage uses four stepped diameters each etched directly on the tool to help reloaders quickly sort a batch of .243 Cal brass after case neck sizing and before bullet seating. Inserting the stepped end into the case neck and sliding it in until one diameter achieves a slip fit provides reloaders with a clear repeatable value for fine tuning neck tension. This process helps ensure a consistent release of the bullet from the case during firing a factor that directly affects accuracy. The gage also allows inspection of the inside neck diameter to check whether a donut has formed at the neck shoulder junction a common but often overlooked defect. Designed as a precision inspection tool rather than a sizing die the Forster Neck Tension Gage complements existing reloading equipment by adding a quality control step to the process. The complete kit covers all five available calibers giving reloaders flexibility to use the gage across multiple cartridges they load for. Its compact etched design makes it easy to identify the correct diameter quickly at the loading bench. For sale at GrabAGun this gage is a useful addition for reloaders focused on consistent neck tension. Forster Products Neck Tension Gage Specifications Manufacturer: Forster Products Type: Case Neck Gauge Caliber: .243 Cal Weight: 0.105 lbs Available At: GrabAGun