Morey, first using words like laser gunnery is not a good idea, they only tend to inflame discussions, and you degrade into classic name calling. 2nd widening the argument with a bombing discussion only shows that you are no longer sure of your idea about the guns, and the use of words like laser gunnery also show you think you may be loosing the debate, because you starting calling things names to belittle them.
2nd I and others have stated /shown per the document you choose to use, AH matches it very closely, so there really is no disagreement other than in your mind.
3rd, it is very very obvious you have not spent much time in a bomber or you would not be claiming the ranges you do.
4th, You confuse what is normally done with what can be done. Just because you can be hit, does not mean it is wise to spray ammo at long ranges. But that in no way says that you can not be hit at longer ranges than suggested in that document. 50 cals still are still effect at 1k, they are just much harder to hit with when shooting out the sides.
5th go spend some time in bombers and see how much you can hit at 600yards out the sides.
HiTech