Ballistic Tools Case Mouth and Neck Tension Gauge Match Grade Gauge 6mm, 243, 6.5mm, 264

Overview

The Ballistic Tools Match Grade neck tension gauge is a precision tool designed for 6mm, .243, 6.5mm, and .264 caliber cases. Unlike calipers, which can produce distorted readings due to burrs or improper pressure, this gauge provides a reliable measurement of neck tension in 0.001-inch increments, ranging from 0 to 0.004 inches. The gauge allows for quick testing of neck sizing results, and its design can also remove small burrs from the case mouth during the insertion process. The number of visible rings indicates the level of neck tension (e.g., 3 visible rings equals 0.003 inches of tension).

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