So Rastoff, how many folks have successfully completed this challenge (all in the orange) thus far?
Using the "regulation" target there are only two, you and I.
Like I said earlier, snowman has the best group. His group is about .1" smaller than mine, but had one round touching the line. Here's his target

shot with a DA revolver)
BobO put up a really nice group, but overall it was a little high:
That top round would be just on the line.
Then there was this target from another forum:
This is a good group. It might even have fallen within the line if he had used the target I posted. However, this shooter was all butt hurt that my measurement didn't match his. He claimed that I used the wrong bullet size because I used .452 instead of .451 for the bullet diameter. Obviously he doesn't understand how measurement works. Still, it was an impressive group even though the top round probably cut the line.
This is an amazing group from a guy with the name of Wimpy:
It's always that one shot.
Here's another heart-breaker from jdesro1911:
Notice how small the group is if it weren't for that last shot.
Then there was me doing it again with my brand new Ruger GP100 Match Champion:
Obviously I need more work with that gun. It's a labor of love though.
Of course this wouldn't be complete if we left out Polymathpioneer's amazing target:
This was 8 shots from a 625 revolver, double action, at 100 yards, under 3 seconds, in the rain and with mud on his glasses.
All these targets that were close, but just a little off (except Polymathpioneer's which is just a joke).
Your group from post #369 is the most obviously inside the orange and not touching any line. If you had used the more oval target, the high left hole might be touching, but I'm not splitting that hair.
Just for reference, here's the original that sparked it all:
I just got 10 of these in the mail:
These are 3.5" vinyl patches with the hook side of velcro on the back so it can go on a range bag. I'll give these out in my class. I might be talked into shipping one out to someone who really wants one and has met the challenge.
Obviously not many will be going out.
I'm overwhelmed by the response and attitude of most. There have been some that claimed this challenge wasn't worth their time because it's not timed or done with movement. All who said stuff like that have not even tried it.
Keep going fellas. There is value in working on your marksmanship. It can only make you better in a defensive situation.