It’s also why they succeeded on the 69th try instead of the 2nd.

But that means the approach described above works perfectly. Fire the gun. Place a bullseye over the bullet hole. Then keep firing the gun until you hit the bullseye "again".

Well, if you consider that "perfectly," yes, but it could take all day. The ancestor post seemed to be suggesting that if it was so "stable, precise and deterministic" that you could do this trivially in a couple shots.

Considering the guy who made the shot commented "we were amazed we got it in so few shots", taking all day is expected anyway.