Precision inspection tool for .243 Winchester brass that measures inside neck diameter after sizing. Four stepped gauges help optimize bullet seating tension and detect case defects before reloading.
The Neck Tension Gage is a straightforward but invaluable tool for serious reloaders who demand consistency. Before you seat a single bullet, you need to know what you're working with—and this gauge tells you exactly what your brass will do.
After sizing your case necks, insert the stepped end of the gage into the neck. The tool features four progressively larger diameters, each clearly etched with its measurement. Slide the gage in until one diameter achieves a slip fit—that's your inside neck diameter. This simple procedure takes seconds and gives you the data you need.
Inconsistent neck tension is a silent accuracy killer. Bullets that release unpredictably from the case create velocity variations that translate directly to group size. The Neck Tension Gage lets you identify and sort brass by tension characteristics, ensuring every round you load performs the same way.
This is precision reloading made practical.