formal target shooting, while fun, was detrimental to combat shooting,
I'm not buying that one little smidgen, not a bit.
formal target shooting stresses fundamentals, the more you stress these fundamentals, the more they are ingrained, or "muscle memory" if you will.
Then when you are rolling around on the ground, firing your pistol/revolver, whether you know it or not, those fundamentals kick in.
When my "combat" style shooting starts going south, (because I get sloppy) I go back to "bullseye shooting" which always improves my combat or action style shooting.