Checking in on this one.
One of the things I've discovered through the reloading and shooting process is to test and verify the physical factors of the problem before I attempt at defining the problem. This means when I'm experiencing shooting inconsistencies, I look to the rifle first...well second actually, my first effort is in consciously repeating the inconsistent results. Once the inconsistent results are confirmed, then verify each component on the rifle. Make sure action screws are properly torqued, physically change out the rings, then change the scope, all one at a time. Usually I find that the inconsistency clears up after the ring/scope change. If it doesn't, then I go and reevaluate each step in my reloading process.
For reference, my first suggested steps here would be a ring/base change. I've experienced numerous inconsistencies with the base Leopold set-up as shown on the rifle pic. I no longer use that set up in any situation. Then, beg or borrow another scope to test out and confirm its either a scope issue or not. The problems you are presenting are very consistent with scope problems I've experienced in the past.
Just me .02 cents here, but I've been in your seat more than once.
(Cool looking rifle by the way.)