I'm not sure what you mean by this but I can tell you regardless of the gun type,the round only rise to the pipper,they never go above it. This is how it's modeled in AH,RL is slightly different.
This isn't true. The rounds DO go above the pipper, dependant upon how you set your convergence. In order to get your rounds to cross
above the LoS in AH, the trick is to set your convergence in as CLOSE AS POSSIBLE, which is counter-intuitive to most people.
The trajectory of the rounds in AH is about as spot-on as could be compared to RL. Especially when it comes to the .50's, which I've spent GOBS of time testing.
With wing mounted .50's set your convergence in to 150yds, and your rounds will be flying at around 5 feet ABOVE the pipper/LoS at 300 yds, 10ft above it at at 600 yds, and won't fall back into line with the pipper/LoS until around 1000yds.
I originally thought as you are (that the rounds would not go above the pipper) but after I figured out the errors I was making during testing I see that they actually do. The center ring of the dot-target is 20 feet in diameter, so if you hold a steady aim at the center of the ring, and use the
center of the pipper as the zero-point I think you'll see what I mean.
The distance the guns are mounted (in feet) is what confuses people about the trajectory patterns in AH. Everyone is used to the distance a gun is mounted below a scope (in inches), and tries to make comparisons based on that. It's a matter of scale. The trajectory is shaped as it should be, it just looks wrong because the scale is so much different.
In order to get the trajectory to appear as we expect it should, HTC would have to model trajectory incorrectly.
With a rifle in RL, sighting-in at 600yds would cause the bullets to arch well
above the LoS, while in AH doing so would cause the trajectory to remain
below the LoS, which is correct.
