A340-300 and A330-300 Range incorrect, partially why A340-300E is so bad

Links to airbus site talking about A340-300 and A330-300:
https://www.airbus.c...amily/a340-300 

https://aircraft.air...ility/a330-300 

https://www.aircraft...-300 SPECS.pdf 

TL;DR, the A340-300 standard should have around 7652 mi of range, and the A330-300 should have around 7301 mi of range.The A340-300E should have 8285 mi of range. The A340-200 should *technically* have another version called the A340-2000 with TONS of range but that's neither here nor there. The main issue is that the A340-300 has way more range than its supposed to, which makes the A340-300E complete crap.