Currently the SVAL without optical attachments is zeroed at 160m by default which cannot be adjusted. Since it fires slow subsonic rounds, zeroing it to higher distances leads to a higher firing angle than other weapons with faster bullets. This creates issues when fighting at close distances (where this weapon is usually used) causing the bullets to fly over the targets head when aiming at their body.
This happens when aiming down iron sights or when hipfiring regardless if a sight is attached.
I suggest allowing players to adjust the zeroing, or at least having the default setting be at 25m or 50m where this weapon is usually most effectively used in this game.