Last post on this subject.
I loaded several loads and found out it loves W748 with 23 grains so I loaded up another 80 rounds.

50 yards, 39 deg, no wind.

It behaved very well with the red dot. Still have the 20 gauge shot shell to test at 25 yards with red dot. I'll do that in the field tomorrow with the oldest lab as we scout for ducks.

More Sierra 50 grain .224 enroute.

[Linked Image from photos.smugmug.com]