1. Yak9U Less then 400 usually 200 whether it's a bomber or fighter.
2. Yak9U 800 on a fleeing 190D. I don't like to waste ammo on buffs beyond 200 but depends on whether it's a busy night.
3. Best plane for long distance kills, P38 I've been tagged at 1000 (and a bit beyond) by those things on a regular basis. Hence never extend straight and level against anything with plenty of nose guns.
4. No idea on bombers, sorry. Would say B17 but B26 seems to attract a few good shots.
As for the shooting beyond 1000, yes must be newbies on merge if I see someone spraying beyond 600 you know it's going to be over early. As for the unable to hook up and take shots under 200, flying the yak you can hook up and stay with just about anything before a short burst. Most killls come on average with around 20rnds.
...-Gixer