So if thermal fit receivers are good then shouldn't this idea be just as good for a receiver that isn't?
If a barrel can slide into an upper with little force, it isn't thermal fit. And if you cannot place a (just example) .0005 shim between the receiver and barrel...Following the same logic as thermal fit, why wouldn't you just heat up the receiver and place the .0005 shim on the barrel and then install the barrel/let it cool? Maybe even apply 620 too...
I'm sure I'm wrong for some reason but it was an idea I had.
If a barrel can slide into an upper with little force, it isn't thermal fit. And if you cannot place a (just example) .0005 shim between the receiver and barrel...Following the same logic as thermal fit, why wouldn't you just heat up the receiver and place the .0005 shim on the barrel and then install the barrel/let it cool? Maybe even apply 620 too...
I'm sure I'm wrong for some reason but it was an idea I had.