That is odd. Several years ago (about 12 years) I mounted a small Leupold spotting scope to a gunstock at the request of one of our game wardens.
I mounted an aluminum block into the stock. The scope was held in place by a 1/4" screw which extended from the bottom of the stock, through the block and into the threads on the bottom of the scope. I worked really slick.
The warden still uses it even though he is now retired from the state of Wyoming.
