The "Remington 700 Medium" benchrest follower  fits all Remington models 7's, 700's, 722's, 600's and 660's chambered for short cartridges with standard case heads, such as the, 22-250, 243 Win, 6mm Rem., 7mmx08, 308 Win. 260 Rem

NOTE: This follower also fits Mod 700 DM (Detachable Magazine) in the above calibers. 
The mod 722 and the mod 600 require that the barreled action be removed from the stock in order to insert the Benchrest follower .