So just to update this post- I got a .660 choke from bass pro, it really tightened up the group. Then I got a .640 carlson’s choke and some 3” yes 7 shot. The pattern was wicked tight at 35 yards, so tight that 50+ pellets would be in the neck and head. I haven’t shot the XR’s or any other shell, just the TSS with this choke.