The actual cursor seems to be offset by 16 blocks in all directions,Partially fixed. so half a chunkit focuses properly now if your camera is positioned at your ship core. The depth one is just harder to see unless you do a precision check.If you're in a camera somewhere else, {F22779}you'll experience an offset as if you're still shooting the weapon from inside your ship core.
Blueprint of an example ship {F22781} and a target {F22782}
Happens for cannonsYou can't notice this in the blueprint I've provided, put some cameras at the edges of the ship and switch to them, beams and missiles (assuming you use a lock on combo for missiles or they won't fire)then fire the weapons again.