Tank Shell Damage Dropoff Over Distance

PS5 User playing on latest update.

Bug: While at Operation Firestorm in an M1A2 using AP rounds firing from outskirt of objective D towards E, hitting targets but found those targets weren't actually taking damage. I'm not a hundred percent but seems around 1100m the shells stop working. You get a visual and there's a very small white damage number that appears at the site of impact, but the vehicle and the opponent player suffer no damage. You also don't get rewarded vehicle damage like you would from a bonafied hit. 

I tested this with multiple helicopter hits as well. The helicopter is impacted but no actual damage is done. No reward is granted for striking the vehicle. Its unsettled them at times but never hurt them. Goes for infantry now that I think of it too.

I am not sure if the AP shell is bugged or if the damage dropoff was intended. I know AP shells in general right now don't seem right, especially in normal engagement range against actual armor. The damage values seem very off.