Forster Products Neck Tension Gage Features The Forster Neck Tension Gage lets reloaders inspect sized case necks after sizing and before bullet seating helping identify the ideal inside neck diameter for consistent bullet release. By sliding the stepped end of the tool into a sized case neck until one of the four etched diameters achieves a slip fit reloaders get a precise read on neck tension without guesswork. This process also reveals whether a donut has formed at the neck-shoulder junction a defect that can affect seating depth and bullet pull consistency. Each of the four stepped diameters is clearly etched onto the tool making readings quick and unambiguous at the reloading bench. Designed specifically for 6.5mm .264 caliber brass this gage helps reloaders dial in the exact neck tension that produces consistent bullet seating and release across every round in a batch. Consistent neck tension directly affects velocity consistency and group size making this a valuable tool for precision reloaders chasing repeatable accuracy. The compact size of the gage makes it easy to keep at the bench alongside other case prep tools for quick reference during a reloading session. This Neck Tension Gage is available for sale at GrabAGun for 6.5mm reloaders focused on consistent case preparation. Forster Products Neck Tension Gage Specifications Manufacturer: Forster Products Model: Neck Tension Gage Caliber: 264/6.5mm Type: Case Neck Gauge Weight: 0.11 lbs Available At: GrabAGun