Picture for illustration purposes only

Savage Round Receiver (2004 and newer guns) Model 10,11,12,14,16,110,111,112,114,116,212,220, Savage A17, Savage Axis, Stevens 200, Ruger American Centerfire, Remington 783 (fits long and short actions):

Front and back of receiver are rounded where mounts attach.

Base screws are 6-48 X 1/4″ long. Ring screws are 6-40 X 5/8″ long. Both use a 7/64 Allen wrench.

Hole spacing dimensions on front mount and back mount are .86″. Both mounts are the same part.  Standard rings are .63″ wide and Tactical rings are .80″ wide. Standard rings have 2 screws per ring and Tactical rings have 4 screws per ring. Height of mounts from top of receiver to centerline of scope tube is – low .92″, medium 1.05″, and High 1.17″.