Gun Barrel Scale

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Unique round metal design allows precise, accurate interior barrell length measurement. This critical measurement is now quick and easy using this scale. Made to fit loosely in various barrels. They provide nonobstructive contact with tight plastic sleeve and nylon tip on end.

Pre-gauged to within ± .010 per 24 inch (61cm) graduated length. Each scale is tested by a Master Vernier Caliper in complicance with Federal SPEC-GGG-C-11C and National Institute of Standards and Technology (NIST) test #731-241460. Each scale is issued a Letter of Certification recorded as a tracable document.

Two sized scales included in the set, one for small bore (22 caliber) and one for larger bore (30 caliber +). Both scales have Metric and meteric ruler and come in a protective storage tube.

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