Solid as steel. The Winchester 1-Piece Talley Style Scope Base is a one piece design that is rigid. Very rigid. A short receiver demands a system that locks down scope mounting in the most solid way possible This base does it like no other. These steel one-piece bases are for use with Model 1885 rifles and Winchester Talley Style Steel Scope Rings. These bases are proven in long range accuracy shooting and help you get the most out of your exceptionally accurate Winchester.