Nobody makes bases to fit as many guns as Weaver. Yet each base is machined to tight tolerances for a custom fit. They're designed to fight the effects of recoil with a square cut notch that precisely mates to the sturdy cross bolt in every Weaver Detachable Ring. Custom hardened fastening screws come with every Weaver base.
No.47M mount
Specifications and Features:
Weaver Top-Mount No. 47M 48503
Precision built
Tight tolerances
Square cut notch
Aluminum
Matte Black
Fits:
Browning A-Bolt, A-Bolt 22 Stalker, BBR Long Action & Short Action - Rear Base Only
Browning Medallion - Front and Rear Base
Enfield (Cut down like a Winchester 70) - Rear Base Only
Marlin MR7 - Rear Base Only
Sears 53 - Rear Base Only
Winchester Model 70 - Rear Base Only
And Others…
No.47M mount
Specifications and Features:
Weaver Top-Mount No. 47M 48503
Precision built
Tight tolerances
Square cut notch
Aluminum
Matte Black
Fits:
Browning A-Bolt, A-Bolt 22 Stalker, BBR Long Action & Short Action - Rear Base Only
Browning Medallion - Front and Rear Base
Enfield (Cut down like a Winchester 70) - Rear Base Only
Marlin MR7 - Rear Base Only
Sears 53 - Rear Base Only
Winchester Model 70 - Rear Base Only
And Others…
No Ratings
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What is the measurements between screw holes?
Answer:
Unfortunately the manufacturer does not list that information. I recommend contacting the manufacturer directly with this inquiry.