This page contains gathered knowledge about various subjects regarding firearms, shooting and competition. It is continually updated with new subjects and data. Common Muzzle Thread Reference Do you want to purchase muzzle brake (compensator) for your rifle and you don’t know what thread to choose for the muzzle brake? Dillon XL650 Exploded view and Armanov add-ons Inspect exploded view of Dillon Precision reloading machines and all Armanov upgrades and add-ons. How to determine Tanfoglio / EAA Witness frame size A simple and reliable way to determine the frame size of your Tanfoglio / EAA Witness pistol.