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Product DescriptionFeel confident that your optics are securely fastened to your firearm with the Top Mount Aluminum Base by Weaver. It is machined to tight tolerances for a custom fit. The base offers optimal strength for the rings to hold on tightly to handle any recoil. #45.
H & R 300, 301, 330, 370 pre 1973
MAUSER Large ring receiver about 1.410" dia (98, FN)*
WEATHERBY Models with FN Mauser actions