I think the arrow flight paths could use a bit modifying when shooting seals / water fowl. I tried hunting seals from a punt and missing the seal some 10-20m away resulted the arrows flying 100-300m past the target. The aimpoint being generally downwards this seems funky
Also: bouncing arrows?
Projectile physics are modelled very precisely, so if the aimpoint really has been downwards this sounds like a bug. But we don’t know the actual shooting setup you had, and this is just one case example. So, test again with similar setup and report as a bug if you really find it happening.
Arrows shot in the water don’t bounce. Not in the game, nor in the real life.
Historically there have been special bouncing arrows, which we’d like to feature at some point, but they can travel beyond the first impact only tens, not hundreds of meters.