Several reason it could be this way but I'd set it up in a mill with a mandrel that indexes on the action face, which of course is what the bbl butts up against. But from there, it's up to you how ya fix it. I'd probably put headless screws in the holes and tig those in place, then machine new 8-40 holes. Less heat and easier to fix vs tigging them full.
But...none of that is definitely the cause, so ya need to determine the root cause and go from there. Setting things up in the mill should tell ya if the screws are really out of line and by how much, with a little math. I suspect you have a different if not multiple issues at play though.
But...none of that is definitely the cause, so ya need to determine the root cause and go from there. Setting things up in the mill should tell ya if the screws are really out of line and by how much, with a little math. I suspect you have a different if not multiple issues at play though.
