The "64 Winchester Medium" Benchrest follower fits all Pre 64 model 70 Winchesters chambered for the 243 Win and 308 Win. It also fits Interarms Mk X in 243 Win or those Mauser's that have a magazine box fitted with a spacer to better accommodate shorter cartridges.

NOTE: Action length is not relevant when choosing the right Benchrest follower. The  followers depend on the magazine box for a proper fit, always refer to the caliber when choosing the right follower.