I don't know if I'm the only one, but after a while the so called bullet drop and time to reach target feels kind of weird to me.
For example in close to medium range the bullets feel like they instantly arrive on target. Only at long range do the bullets feel like they lose momentum.
A good way to test this would be to see, with tracer rounds enabled, wether bullets actually arrive at the same time as the bullets we can physically see on the screen.
For example in the game S.T.A.L.K.E.R. and even Battlefield you can see those bullets that they actually leave the gun.
I'm not familiar with Battlefield bullet trajectory but thanks to mods for stalker, I know bullets actually have a starter muzzle velocity which then decreases by distance and you can actually see the rounds starting to lose momentum and slowly drop on the ground.
As of now in Sandstorm the bullet trajectory feels like it's instant hit for close to medium range and it's almost like they simply added a delayed hit for long ranges. Even with tracer rounds enabled, not once could I actually see my bullets fly. And when I saw bullets coming from other guns all I see is a long yellow glowing line, instead of a small glowing line that moves fast.
Comparison video with the 5.56x45