mckaysnark.livejournal.comI am going to kick myself when somebody finds this fic. It's got competent!Tony. Natasha and Clint (I believe) decide that all of the Avengers need to be trained to use a gun. Bruce is excused because he turns into a giant green rage monster. Tony wants to be excused, but they won't let him. It turns out he's amazing at it because Howard forced him to learn over and over until he got it perfect. Tony pretends to be bad at it when they force him to shoot, but Natasha (and most likely Clint) see through it and call him on it and he shoots the target - perfect score.
I've read this and thought I had bookmarked it, but I cannot find it. I will have delicious awesome cyber cookies or brownies for the one who finds it!