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TECH TIP: Case Gauge -vs- Min Dimension Gauge

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Brownells Tech Tip: AR-15 Headspace

How to Diagnose Case Length and Head Space Gage Rejects

Рейд Коффилд демонстрирует калибры для проверки зазора затвора (Gadspace Gages) от компании Forst...

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Ammo Checker (Chamber Gauge) vs Case/Headspace Gauge 8-28-2020

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Простой способ проверить свободное пространство над головой 

Checking fillet weld leg length and fillet weld throat dimension