02-21-2023, 10:08 PM
As you will see on this or other forums, people will have differing opinions.. I do use go gauges to set the minimum standard for the chambers I use. I believe tolerances were set for a reason..If I hand one of my rifles to someone, they will know that my rifle will meet the tolerances set for that caliber..I separate my bolts by short medium and long..Bolts can effect head space when it comes to chamber tolerances. I have swapped bolts to fit the chamber.. I have one Grendel bolt that will not meet tolerance on any of my barrels, I would never use it, but that is just me..I also use a function gauge to verify the chamber was cut correctly..Some use comparative gauges, some will put rounds through their rifle and consider it good to go if it functions reliably and the brass looks good, while others will size their brass to fit their chambers..I have seen out of spec chamber gauges, which is why I test all of my chamber gauges...I also don't believe a rifle needs to be broken in to run correctly,I consider a rifle that needs to be broken in as a rifle that is out of spec..When I work on troubled AR rifles, I can many times find the culprit in a poorly cut chamber or manufactured bolt and carrier..Properly made chambers are very important to me..There is a reason some rifles will eat steel case ammunition and others will choke on them...