The "Mauser 98, FN 98, and Interarms Mark X" benchrest follower fits any type 98 Mauser action , any caliber, standard or magnum.  This follower also fits Model 93,94,95 and 96 Mausers.  This follower is especially deep and allows the cartridge to feed up under the extractor as a true control feed.

NOTE: It will not fit those models of the Mark X that are fitted with a magazine insert for the shorter cartridges such as the 243 Win or 308 Win.  For these models order the "Winchester Pre-64 Mod 70 Medium"