You are right about the need for vertical for a good scope. I think what is needed is a 50 mm body to realistically do this. Witness the internal SN-9 by US Optics. AT least they SAY they have one on their website. They have not replied to my email about it. Anyone else think or know it is for real and can add information about it. I will be using a 50 MOA adjustable base to my 20 MOA base that will hold the NF 12-42 for my .408 STILL awaiting a K&P barrel!