brandoninaz - appears to me the regulation is about perfect for that load. The only adjustment needed, is to move the centre of the groups to the right about 3/4" so the individual barrels bracket the point of aim - orange dot - thus the barrels will be shooting "centre" - ie: bore axis width apart, which is perfect as far as I can see.

As long as the barrels are grouping with each bl.'s group centred bore axis apart, they will ALWAYS remain bore axis apart, never crossing nor diverging, thus express sights can be regulated for longer ranges than point blank, and the gun's accuracy or ability to shoot to the sights will comply.