Cyrano, I haven't totally given up on the the original external mounting design, and do in fact have plans for a similar mount with many design changes down the road, but complexity, reliability, and cost are a concern.jmeck, I don't have one of my Mosins handy to look at to see if I'm barking up the wrong tree, but what about this as a solution to the anchoring issue? Is there any way you could use the forward action screw to lock the strap down? Machining a new screw that is slightly longer, perhaps? It might give you enough of an anchorage in addition to the existing strap to hold the mount steady.
Might be a bit of a suprise to see this 11 years later but I really like the design, especially the one I saw with the scope at the same hight as the Iron sight (think it was the first pictures). How is it going and did you move past the prototype stage and into production? If so do you ship to Sweden?😅I just picked up this 91/30 a couple of weeks ago. Its a 1935 Tula Hex receiver with a mint bore that actually shines. I was going to test it out yesterday but I ended up having to work until 4:30 :sigh:
The scope is a Weaver K4 with fine crosshairs. The mount is a proto-type I'm working on to use on rifles that I don't want to do any modifications to. ( I will probably use it on a few rare Finns I have) It is an external band strap design (the band don't touch the stock) with a low offset rail so the straight bolt can be used. Looks? Yeah, its not to pretty, I may need to strap a cheek rest on the side of the stock for a better cheek weld but I think it will get the job done.
If it don't work to well or I don't like it I can allways mount a rail on top of the see-through base and use a turned down bolt. I'll post a range report if I get to the range next weekend.