Hi, I had a similar problem with wrong mounts, think because I went for the cheapest set I saw on the web. Spoke to Alan Rhone Ltd up near Chester, they deal with the Recknagel mounts and can fit pretty much any size scope to most rifles. Been using mine now for 3 months and still accurate as ever. Haven't got a number sorry, but that's what Google's for.
Hope this helps you out.