So went out and shot a few more rounds today. Used those 150g ELD-X again. Also took my normal 12g Barnes to compare. First shots on both were kinda spread out like it has been so I started to fear the scope was the issue. Let it cool and shot a few more groups. Seems after the first go round it tightened back up where I wanted.
this was the next to last group with a flyer. And you can see the other group lower right both with the hornady rounds

Then the last group really tightened up (did adjust the scope down some)

I have no idea how or why it went haywire then back to decent again. My guess is it got better as the barrel got dirty again and me the shooter wasn't putting pressure or something on the stock when shooting from the sled. Also ended up adjusting right just a tad
this was the next to last group with a flyer. And you can see the other group lower right both with the hornady rounds

Then the last group really tightened up (did adjust the scope down some)

I have no idea how or why it went haywire then back to decent again. My guess is it got better as the barrel got dirty again and me the shooter wasn't putting pressure or something on the stock when shooting from the sled. Also ended up adjusting right just a tad