TargetTalk

an air gauge is definitely a very expensive piece of equipment. There is a web site http://chesapeaketesting.com/services/gun-barrel-mapping/?gclid=CjwKEAjw-_e7BRDs97mdpJzXwh0SJABSdUH0ziVjUQWWsOGBkY7K87nJxTppKSXqUEdWNVDuEAOcNxoC-Vzw_wcB that claims their laser inspection is better than air gauging. ...

Barrel makers hand lap barrels using experienced people and an air gage. You can lap a barrel using a prodigious supply of slugs and a lot of time and patience and a .0001" mic. (unless you have an uneven number of lands/grooves). Where can I learn about air gages? What does number of grooves ...

How do I upload a *.jpg

Can anyone tell me how to detect and correct a tight spot in a barrel?