Damaged barrel thread.

[Riesel]

I've heard that before. I'm curious if the second gunsmith was giving me an abbreviated version, or if I am misremembering exactly what the issue with the threads was - like perhaps the root was cut too deep and it resulted in a sloppy fit. The big thing was that it shot 3 MOA at best and the first guy had used plumbers dope to get it together after he threaded it poorly!

Probably turned the tenon down too far before threading. Once that metal is gone, it's gone. He should have used acura glass like a mauser barrel I took off once. I had to heat the action
a little to melt the glass to get it disassembled. Action threads were a mess but just chased them with a tap and all was better. I'm talking 98 Mauser here.

 

[Coonman300]

Interesting thread...wish I knew more about machining etc

 

[CF2209]

No this was a brand new bbl fitted recently.