"I opened fire only when the whole windshield was black with the enemy... at minimum range... it doesn't matter what your angle is to him or whether you are in a turn or any other maneuver."
Colonel Erich "Bubi" Hartmann, GAF
world's leading ace, Luftwaffe
352 victories, WWII
"You can have computer sights or anything you like, but I think you have to go to the enemy on the shortest distance and knock him down from point-blank range. You'll get him from in close. At long distance, it's questionable."
Colonel Erich "Bubi" Hartmann, GAF
world's leading ace, Luftwaffe
352 victories, WWII
"I had no system as such. It is definitely more in the feeling side of things that these skills develop. I was at the front five and a half years, and you just get a feeling for the right amount of lead."
Lt. General Gunther Rall GAF
3rd leading Luftwaffe ace, WWII
275 victories
"As to gunnery passes, the best was when you dived with speed, made one pass, shot an opponent down quickly, and pulled back up... The secret was to do the job in one pass; it could be from the side or from behind and I usually tried to open fire at about 150 feet."
Major Erich Rudorffer, Luftwaffe
7th leading ace, WWII
222 victories (13 on one mission!)
I think anyone with more than 200 kills knows what they are talking about!
"Go in close, and then when you think you are too close, go in closer."
Major Thomas B. "Tommy" McGuire, USAAF
2nd leading U.S. ace WWII
38 victories
See, even beginners have the right idea!
For reference, all of these great quotes and more are in "Fighter Combat Tactics and Maneuvering" by Robert L. Shaw, probably the single best source for learning and understanding every aspect of air to air combat.