Maniac, I gotta agree with Funked here. While I have seen an occasional hit at 800 (mostly on bombers), I would hardly say such hits are common. And I would never say that kills are common above 800 yards.
The last time this came up, Pyro challenged anyone to produce films showing consistent kills at long range, such as those you and RAM are talking about in the other thread.
The only person that could post film of even getting hits (and they were minor) at 1k or above was RWY, and that was against a non manuevering target if I remember correctly. And RWY is an excellent pilot, we flew together for many years in a squadron together, I know he is definitely above average.
Personally, I can't hit with MG's above 500 yards and Cannons above 400. But then again I am a poor shot.
So here is my challenge to you

Produce some film (it can be anyone flying) showing how long range kills, against a target that is trying to defend itself, are so easy.
Until you do though, I think you will have a tough time getting the crowd here behind you.
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Vermillion
**MOL**, Men of Leisure
"Desperately trying to figure out why Kamikaze Pilots wore helmets"