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.28 mount

Fits:
Browning older model BLR with flat top
BSA high powers
Herters U9 BSA action; drilling and tapping required
Voere 2130; drilling and tapping required

Note:
This is only a single mount. You will need to order two mounts for mounting a scope.