Its far to late for that, no degreaser will remove silicone oil either, its also imperviouse to the sort of heat that you can get to without damage to the action.
I reamed polished and repeatedly degreased but after a few cycles it just starts all over again until the anodised and brass surfaces almost fuse together.
Remember this was a brand new rifle and it was pretty well destroyed by this evil s**t which has no business being any where near anything mechanical.
I am useing the unaffected parts for spares and have told the owner to write to the makers/distibutors to inform them of the damge to his rifle.
Ben