Weaver's precision-built all steel bases are machined to tight tolerances for a custom fit and a square-cut notch mates to the sturdy cross bolt in every Weaver Detachable ring. Custom hardened fastening screws included. Fits: Anschutz Model 1568 (Front base ONLY)Browning Models Bolt Action, Hi-Power, other cal. (older models), Mauser Actions, & BBR Long and Short Action (Front base ONLY)Cil Models 950, 950-C& 972-C (Front base ONLY)Colt 57 (Front base ONLY)Cooey 71(Front base ONLY)Enfield receiver cut down like Winchester Model 70 (Front base ONLY)H & R Models 300, 301, 330, 370 before 1973; 300, 301 Long Action-1973 and after (270, 30-06, 7mm, 300 Winchester)(Front base ONLY)Herters J9 (Front base ONLY)High Standard High Power (Front base ONLY)Interarms Viscount (Front base ONLY)Marlin Models 455 & MR7 (Front base ONLY)Mauser Model FN 98, Swedish 96, &; Bauer 3000, 4000 (Front base ONLY)Musgrave Models Mark I-IV (Front base ONLY)Navy Arms Country Boy MuzzleloaderParker-Hale Models...