Well, he said to send it back and he'd fix it. He's standing behind it 100%. He said he's never heard of this happening and that normally a barrel even hand tightened will tighten itself when shooting.
He said he'd check it all out and see if anything is ruined or needs to be replaced. He'll torque the barrel down and then test shoot for accurate grouping. If it doesn't he'll put a new barrel on it.

So, while it may take a week or two at least it should be fixed. It sucks that I've wasted 500 rounds of FGMM and 300 or so hand loads doing load dev. I'll have to start all over.
