For you K4 guys, I followed Waystin around in K4's this week because we may have to fly them this month in FSO. In real life at 400m the 30mm dropped 12 inches but, had a dispersion circle of 29ft. Hadn't flown a K4 in AH3 until this week, so it was an eye opener when I sat 400 dead 6 on a con, tapped the 30mm only, 6 rounds, and saw one round hit the very outside tip of the left wing. I watched a german guncam film once of a B24 being shot at with 30mm and the tracer curved to the right and hit to tip area of the right wing.
Check it out sometime offline, auto level at 300TA, pull up the target at 400. Then shoot only the 30mm and remember the rings on the target are 10 feet wide. So at 500 meters per second with a 29ft dispersion circle at 400, even with 400 as your convergence. Even if you lead a fighter with 100Mil per 100mph, you still may shoot really high, low, or in left field somewhere. Now against a bomber, probably will get hits.
I guess I'm practicing to get a K4's spinner up my cons exhaust system before I tap the trigger this month since we have three FSO Fridays ahead of us.