I have purchased a Savage 1899H. Takedown. 250-3000 caliber, serial number show 1915 mfg date. It is entirely functional but filthy. Disassemble for cleaning. The question is about a metal insert within the underside of the fore end. It is round with a square in the center. Can some one please tell me what the purpose of this part is? It doe snot appear to have anything to do with attaching the fore end to the barrel. With some effort it can be turned with a male square tool, but it does not appear to be threaded not does it come out easily. I simply left it alone. Nevertheless would appreciate knowing what it does. Thanks. Dan
