And again, those numbers don't correspond to reality, unless that's some terminal minimum velocity or sth. A 310m LSTAR hit takes ~0.6-0.7 sec (my measurements weren't very precise), so 440 m/s at minimum. If we assume there's velocity drop over distance, the initial velocity has to be even higher.
Flatline's 310m time is somewhere between 0.7-0.75 sec, so it's actually slower than LSTAR over this distance, yet you would think it had to be 2x faster...
I couldn't test any shorter distance, because I didn't want to bother with replays and slow-motion time measurement, but I would assume heavy weapons actually have higher initial velocity, but extremely high deceleration, while energy weapons have very little (or none at all) deceleration. So I guess it is possible that at 50m, L-STAR would indeed be much slower, but honestly 0.05 or 0.1 sec really doesn't make that much difference - you still lead less than 1 body width (1m in Apex is actually very short - ~1 body width; at 7.5m/s move speed, you would need to lead 0.7m with 0.1 sec travel time = less than 1 body width)...
So again, don't trust datamined numbers if you don't know what they stand for. And most definitely don't make gameplay assumptions on them.
P.S. Wingman 310m shot = 1-1.1 sec, and 750m - full 3 seconds... (longbow ~2,2s, TT - ~1,1s; L-STAR somewhere between 1.5-1.8s (I didn't have the patience to get more hits on the 750m target to get more accurate measurements)).
P.P.S. I looked at that thread and if travel time actually varies between shots on the same weapon... Well that would explain a lot of hit inconsistencies at long range... I don't get how that could be a thing though. Some extreme rounding errors in calculations?