With Leupold Quick Release steel bases you can mount a scope, zero it, remove it, reattach it and remain nearly dead-on with your original point of impact. The key is precise machining of the patented lever mechanism. Turning the lever forward engages the base of the ring, pulling the ring down and forward, locking it into its "zero" position.
Base Style: Leupold Quick-Release
Mounting Hardware Included
The Winchester 70 Express Pre '64 model fits (.435 Rear mount hole spacing for .416 Remington, H&H models 300 and 375, 300 Winchester Magnum
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