Which type of poke ball do you use on Moltres? I've been using ultra balls, but he breaks free every time, I used pokeballs and it gets to the third shake and breaks free...i've used about 40 of each as well... does any know how else to get him?(Also I've used scyther's false swipe, so he's down to 1 hp)
keep trying all the types of balls, and try putting it to sleep of freezing it. so it will be easier to catch.
don't posin/burn it coz then it may faint before you can catch it.
hope it helps