Wiley,I was talking about ingame,I realize how balistics work in the RL but in AH you are mistaken like Klam,test out the .target set conv. to 600 and see if you can get the round to hit above your aim point at any distance!
Bustr did some testing and his results concur with this.
It's kind of counter-intuitive, but setting your convergence way out there makes it less likely that your rounds will ever go above your LoS. Setting the convergence in close though, practically assures they will.
The rounds
will lift above the LoS, depending on what your convergence is set at, whether you're using wing-mounts or nose-mounts, and how far above the guns the pilots LoS is. Setting the convergence in close will actually allow your rounds to go up as high as 10ft above LoS with wing-mounts, much less-so with nose-mounts.
Setting it to 600 will bring it above LoS with nose-mounts, but not with wing-mounts.
I was skeptical at first, but actually found AH ballistics to be about as close to RL as possible.
In answer to the OP's question... I set mine for 275-300 yards, and fire when I see the distance-counter switch from D400 to D200, which (as previously stated) is actually at 300 yards.