Here's a sequence of a perfect fighter pass on a bomber group. The fighter has come in from high 7 on the bombers to make a pass at them.
Don't let this first picture fool you....the fighter is not camping on the bomber's 6, hoping to take out the formation. He's just come out of his dive, in perfect shooting distance and still near full throttle, and is shooting for the lead plane and not the drones.
After three short bursts on the lead plane, the fighter's aim is perfect and he has blown in inboard engine on the right wing.
The fighter doesn't wait around to kill some more, he continues to blow through the formation, satisfied he has taken out one of the bombers. Here, you can see him grinning and flipping the bird back to the formation.
The entire confrontation, from when the fighter leveled out of his dive and began firing to blowing the wing off the lead plane, was three seconds.