Just don't let your Base Screws, get LOW enough to be "NEAR, the Lugs",.. SHORTEN them, carefully ( Loctite Down ) to, NOT,.. protrude !
Plenty of Lug, "hold area" remains, just AVOID,.. Max Pressure, Loads !
Personally, I'd "Lap" lugs a Little Bit and,.. Use, the Action.
Does Brownell's still Sell "Short Chambered", Douglas Barrels ??
I've re-Chambered / Re-Stocked, Many of those Mauser's, back in the Day ( 1980's ) with, Douglas Barrels.