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Revolver was shot from double action though.
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That's nice. Perhaps you're concentrating more with the heavier double action pull.
At the end of the day your not pulling the trigger straight back. All 3 targets have a 2 o-clock/8 o-clock line cut in them. That's a sign of jerking & anticipating recoil. Cull those shots out and you're left with a large circle/round hole in the target.
You really want to find out what you're doing print up a bunch of shooting wheels and put a 1" paster in the center of them and hang them up and shoot them. Hitting a 1" dot @ 21ft isn't asking a lot. A 10m/11yd/33ft pellet pistol target has a .45" 10-ring. A 50ft nra pistol target has a .9" 10-ring.
Not being a smart ass, just shot a lot of targets with pistols.