The Leupold 1-Piece Steel Standard Base Savage 10SA Round Rear Receiver is designed for withstanding even the toughest recoil. Due to it being one piece, you will find the mounting options to be nothing short of solid. This base is created from sturdy metal to ensure a stable and well-secured mount. The alignment holds steady, even when many rounds have been fired through your firearm. The piece holds true when being used on the hunt, during competition shoots, or relaxing at the range.