Thanks for the reply and the photos - that's the first time I've had a good look at that mount. It looks pretty sturdy! What type of scope is that?
The local dealer(s) sold quite a few of these things a few years ago, I think they were brought in by BELL. To the best of my knowledge none of the rifles sold around here ever had scope mounts with them, it must have been an extra cost item. One local guy had a side mount made up out of aluminum, it worked but did not look as appropriate as the real thing.